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Mining Industry 

Significant Points:

  • Employment is projected to decline; however, job opportunities should be favorable for construction and extraction, and production workers in coal mining and nonmetallic mineral mining.
  • While most mining jobs can be entered directly from high school, the increasing sophistication of equipment and machinery requires a higher level of technical skill.
  • Earnings are higher than the average for all industries.

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Nature of the Industry

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Mining has played an important role in the development of the United States. In the past, the discovery of minerals such as gold and silver resulted in population shifts and economic growth. Extraction of minerals and coal continues to provide the foundation for local economies in some parts of the country. Products of this industry are used as inputs for consumer goods, processes, and services provided by all other industries, including agriculture, manufacturing, transportation, utilities, communication, and construction. Uses of mined materials include coal for energy, copper for wiring, gold for satellites and sophisticated electronic components, and a variety of other minerals as ingredients in medicines and household products.

Besides mining coal and metallic and nonmetallic minerals, employers in this industry explore for minerals and develop new mines and quarries. Metallic minerals include ores, such as bauxite—from which aluminum is extracted—copper, gold, iron, lead, silver, and zinc. Nonmetallic minerals include stone, sand, gravel, clay, and other minerals such as lime and soda ash, used as chemicals and fertilizers. This industry also includes initial mineral processing and preparation activities, because processing plants usually operate together with mines or quarries as part of the extraction process. (A separate section in the Career Guide covers careers in oil and gas extraction.)

Mining is the process of digging into the earth to extract naturally occurring minerals. There are two kinds of mining, surface mining and underground mining. Surface mining, also called open-pit mining or strip mining, is undertaken if the mineral is near the earth?s surface. This method usually is more cost-effective and requires fewer workers to produce the same quantity of ore than does underground mining. In surface mining, after blasting with explosives, workers use huge earthmoving equipment, such as power shovels or draglines, to scoop off the layers of soil and rock covering the mineral bed. Once the mineral is exposed, smaller shovels are used to lift it from the ground and load it into trucks. The mineral also can be broken up using explosives, if necessary. In quarrying operations, workers use machines to extract stone used primarily as a building material. Stone, such as marble, granite, limestone, and sandstone, is quarried by splitting blocks of rock from a massive rock surface.

Underground mining is used when the mineral deposit lies deep below the surface of the earth. When developing an underground mine, miners first must dig two or more openings, or tunnels, deep into the earth near the place where they believe coal or minerals are located. Depending on where the vein of ore is in relation to the surface, tunnels may be vertical, horizontal, or sloping. One opening allows the miners to move in and out of the mine with their tools and also serves as a path for transporting the mined rock by small railroad cars or by conveyor belts to the surface. The other opening is used for ventilation.

Entries are constructed so that miners can get themselves and their equipment to the ore and carry it out, while allowing fresh air to enter the mine. Once dug to the proper depth, a mine?s tunnels interconnect with a network of passageways going in many directions. Long steel bolts and pillars of unmined ore support the roof of the tunnel. Using the room-and-pillar method, miners remove half of the ore as they work the ore seams from the tunnel entrance to the edge of the mine property, leaving columns of ore to support the ceiling. This process is then reversed, and the remainder of the ore is extracted, as the miners work their way back out. In the case of longwall mining of coal, self-advancing roof supports, made of hydraulic jacks and metal plates, are moved ahead, allowing the ceiling in the mined area to cave in as the miners work back towards the tunnel entrance.

Once all the minerals or coal have been extracted, the mine and its surrounding environment must be restored to the condition that existed before mining began. In surface mining, the layers of topsoil, or overburden, that were removed in order to reach the mineral are used to fill in the mine and reshape the land. This ensures that native plants and animals will be able to thrive once again. Underground mining does not require as extensive a reclamation process; however, mine operators and environmental engineers still must ensure that ground water remains uncontaminated and that abandoned mines will not collapse. The reclamation process is highly regulated by Federal, State, and local laws, and reclamation plans often must be approved before mining permits will be granted.

During the 1990s, production of both minerals and coal increased. Given the more volatile price of metal, its production fluctuated more than that of nonmetallics. However, employment in both sectors declined significantly as new technology and more sophisticated mining techniques increased productivity, allowing growth in output while employing fewer workers. Most mining machines and control rooms are now automatic or computer-controlled, requiring fewer, if any, human operators. Many mines also operate with other sophisticated technology such as lasers and robotics, which further decrease the number of workers needed to mine materials.

Working Conditions

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The average production worker in the mining industry worked 45.8 hours a week in 2004, although schedules can vary widely. Some mines operate 24 hours a day 7 days a week, creating the opportunity for some mining workers to work long shifts several days in a row, then have 4 to 5 days off. Work environments vary by occupation. Scientists and technicians work in office buildings and laboratories, while miners and mining engineers spend much of their time in the mine. Geologists who specialize in the exploration of natural resources may have to travel for extended periods to remote locations, in all types of climates, in order to locate mineral or coal deposits.

Working conditions in mines and quarries can be unusual and sometimes dangerous. Underground mines are damp and dark, and some can be very hot and noisy. At times, several inches of water may cover tunnel floors. Although underground mines have electric lights, only the lights on miners? caps illuminate many areas. Workers in mines with very low roofs may have to work on their hands and knees, backs, or stomachs, in confined spaces. In underground mining operations, dangers include the possibility of an explosion or cave-in, electric shock, or exposure to harmful gases.

Workers in surface mines and quarries are subject to rugged outdoor work in all kinds of weather and climates. Some surface mines shut down in the winter because snow and ice covering the minesite makes work too difficult. Physical strength and stamina are necessary because the work involves lifting, stooping, and climbing. Surface mining, however, usually is less hazardous than underground mining.

In 2003, the rate of work-related injury and illness was 3.7 per 100 full-time workers in metal mining, 3.7 in nonmetallic minerals, and 6.2 in coal mining, compared with 5.0 for the entire private sector. Mining illnesses and injuries have steadily declined over the years because of stricter safety laws and improvements in mining machinery and practices. Although mine health and safety conditions have improved dramatically, dust generated by drilling in mines still places miners at risk of developing either of two serious lung diseases: Pneumoconiosis, also called ?black lung disease,? from coal dust, or silicosis from rock dust. The Federal Coal Mine Health and Safety Act of 1969 regulates dust concentrations in coal mines, and respirable dust levels are closely monitored. Dust concentrations in mines have declined as a result. Underground miners have the option to have their lungs x-rayed when starting a job, with a mandatory follow-up x-ray 3 years later, in order to monitor any development of respiratory illness. Additional x-rays are given every 5 years, on a voluntary basis. Workers who develop black lung disease or silicosis may be eligible for Federal aid.

Chart 1. Number of workers employed by establishment, March 2004. Nearly three-fourths of the establishments in mining employ fewer than 20 workers.

Employment

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There were approximately 207,000 wage and salary jobs in the mining industry in 2004; around 72,000 in coal mining; 27,000 in metal mining; and 108,000 in nonmetallic mineral mining. According to the Energy Information Administration, there were around 1,400 coal mining operations in 26 States in 2003. Over half of all coal mines are in three States—Kentucky, Pennsylvania, and West Virginia. Other States employing large numbers of coal miners are Alabama, Illinois, Indiana, Virginia, and Wyoming. Metal mining is more prevalent in the West and Southwest, particularly in Arizona, Colorado, Nevada, New Mexico, and Utah. Nonmetallic mineral mining is the most widespread, as quarrying of nonmetallic minerals, such as stone, clay, sand, and gravel, is done in nearly every State. In many rural areas, mining operations are the main employer. About 73 percent of mining establishments employ fewer than 20 workers (chart 1).

Table 1. Employment of wage and salary workers in mining by occupation, 2004 and projected change, 2004-14. (Employment in thousands)
Occupation Employment, 2004 Percent change,
2004-14
Number Percent
 
Total, all occupations 207 100 -12.9
 
Management, business, and financial occupations 10 5.0 -10.5
  Top executives 5 2.2 -9.7
 
Professional and related occupations 8 3.7 -15.2
  Mining and geological engineers, including mining safety engineers 2 0.8 -22.0
 
Office and administrative support occupations 14 6.8 -17.0
  Office clerks, general 3 1.3 -14.2
 
Construction and extraction occupations 69 33.4 -13.8
  First-line supervisors/managers of construction trades and extraction workers 8 3.9 -14.0
  Operating engineers and other construction equipment operators 21 10.2 -9.9
  Electricians 5 2.4 -19.8
  Earth drillers, except oil and gas 2 1.0 -14.9
  Explosives workers, ordnance handling experts, and blasters 1 0.6 -14.9
  Mining machine operators 13 6.1 -12.9
  Continuous mining machine operators 7 3.6 -14.2
  Mine cutting and channeling machine operators 3 1.6 -13.6
  Rock splitters, quarry 2 1.1 -0.5
  Roof bolters, mining 4 2.1 -29.9
  Helpers.Extraction workers 6 3.0 -16.1
 
Installation, maintenance, and repair occupations 27 13.2 -14.6
  First-line supervisors/managers of mechanics, installers, and repairers 3 1.3 -16.9
  Mobile heavy equipment mechanics, except engines 7 3.3 -15.3
  Industrial machinery mechanics 3 1.5 -16.0
  Maintenance and repair workers, general 7 3.5 -12.4
  Maintenance workers, machinery 3 1.3 -14.5
 
Production occupations 26 12.5 -9.2
  First-line supervisors/managers of production and operating workers 3 1.6 -9.7
  Welders, cutters, solderers, and brazers 3 1.3 -12.0
  Separating, filtering, clarifying, precipitating, and still machine setters, operators, and tenders 3 1.3 -13.4
  Crushing, grinding, and polishing machine setters, operators, and tenders 7 3.3 -7.1
 
Transportation and material moving occupations 50 24.0 -11.6
  Truck drivers, heavy and tractor-trailer 15 7.1 -5.5
  Conveyor operators and tenders 3 1.4 -10.5
  Excavating and loading machine and dragline operators 11 5.2 -9.0
  Loading machine operators, underground mining 3 1.4 -14.2
  Industrial truck and tractor operators 3 1.6 -4.3
  Laborers and freight, stock, and material movers, hand 5 2.6 -19.1
  Shuttle car operators 3 1.3 -45.9
 
Note: May not add to totals due to omission of occupations with small employment


Occupations in the Industry

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The mining industry requires many kinds of workers. In 2004, 7 out of 10 workers were in construction and extraction, production, or transportation and material-moving occupations (table 1).

Mining occupations. The majority of jobs in the mining industry are in construction and extraction occupations. Though most of these jobs can be entered into directly from high school, or after acquiring some experience and on-the-job training in an entry-level position, the increasing sophistication of equipment and machinery used in mining means a higher level of technical skill is now required for many positions.

Underground mining primarily includes three methods—conventional, continuous, and longwall mining. Conventional mining, which is being phased out, is the oldest method, requiring the most workers and procedures. In this method, a strip or ?kerf? is cut underneath the ore seam to control the direction in which the ore falls after it has been blasted. Cutting-machine operators use a huge electric chain saw with a cutter from 6 to 15 feet long to cut the kerf. Next, drilling-machine operators drill holes in the ore where the shot firers place explosives. This potentially dangerous work requires workers to follow safety procedures, such as making sure everyone is clear of the area before the explosives are detonated. After the blast, loading-machine operators scoop up the material and dump it into small rubber-tired cars run by shuttle-car operators, who bring the coal or ore to a central location for transportation to the surface.

The continuous mining method eliminates the drilling and blasting operations of conventional mining through the use of a machine called a continuous miner. Traditionally, a continuous-mining machine operator sits or lies in a machine?s cab and operates levers that cut or rip out ore and load it directly onto a conveyor or shuttle car. However, the use of remote-controlled continuous mining machines—which have increased safety considerably—now allows an operator to control the machine from a distance.

In longwall mining, which is similar to continuous mining, longwall-machine operators run large machines with rotating drums that automatically shear ore and load it on a conveyor. At the same time, hydraulic jacks reinforce the roof of the tunnel. As ore is cut, the jacks are hydraulically winched forward, supporting the roof as they move along.

Many other workers are needed to operate safe and efficient underground mines. Before miners are allowed underground, a mine safety inspector checks the work area for such hazards as loose roofs, dangerous gases, and inadequate ventilation. If safety standards are not met, the inspector prohibits the mine from producing until conditions are made safe. Rock-dust machine operators spray the mine walls and floor to hold down dust, which can interfere with breathing.

Roof bolters operate the machines that automatically install roof support bolts to prevent roof cave-ins, the biggest cause of mining injuries. Brattice builders construct doors, walls, and partitions in tunnel passageways to force air into the work areas. Shift bosses oversee all operations at the worksite.

In surface mining, most miners operate huge machines that either remove the earth above the ore deposit, or dig and load the ore onto trucks. The number of workers required to operate a surface mine depends on the amount of overburden, or earth, above the ore seam. In many surface mines, the overburden is first drilled and blasted. Overburden stripping operators or dragline operators then scoop the earth away to expose the coal or metal ore. Some draglines are among the largest land machines on earth.

Next, loading-machine operators rip the exposed ore from the seam and dump it into trucks to be driven to the preparation plant. Tractor operators use bulldozers to move earth and ore and to remove boulders or other obstructions. Truckdrivers haul ore to railroad sidings or to preparation plants and transport supplies to mines.

Construction, maintenance, and repair occupations. Other workers, who are not directly involved in the extraction process, work in and around mines and quarries. For example, skilled mechanics are needed to repair and maintain the wide variety of mining machinery, and skilled electricians are needed to check and install electrical wiring. Mechanical and electrical repair work has become increasingly complex, as machinery and other equipment have become computerized. Carpenters construct and maintain benches, bins, and stoppings (barricades to prevent airflow through a tunnel). These workers generally need specialized training to work under the unusual conditions found in mines. Mechanics, for example, may have to repair machines while on their knees, with only their headlamps to illuminate the working area.

Quarrying occupations. Workers at quarries have duties similar to those of miners. Using jackhammers and wedges, rock splitters remove pieces of stone from a rock mass. Dredge operators and dipper tenders operate power-driven dredges, or dipper sticks of dredges, to mine sand, gravel, and other materials from beneath the surfaces of lakes, rivers, and streams. Using power-driven cranes with dragline buckets, dragline operators excavate or move sand, gravel, and other materials.

Processing-plant occupations. Processing plants often are located next to mines or quarries. In these plants, rocks and other impurities are removed from the ore, which is then washed, crushed, sized, or blended to meet buyer specifications. Methods for physically separating the ore from surrounding material also include more complex processes, such as leaching—mixing the ore with chemical solutions or other liquids in order to separate materials. Most processing plants are highly mechanized and require only a few workers for the washing, separating, and crushing operations. Processing-plant supervisors oversee all operations. In plants that are not heavily mechanized, washbox attendants operate equipment that sizes and separates impurities from ore, and shake tenders monitor machinery that further cleans and sizes ore with a vibrating screen. Most jobs in the processing plant are repetitive and, as a result of highly computerized mechanization, are becoming more automated.

Management, business, and financial and professional and related occupations also are important to the mining industry. Administrative workers include top executives, who are responsible for making policy decisions. Staff specialists (such as accountants, attorneys, and market researchers ) provide information and advice for policymakers.

Professional and related workers in mining include engineering, scientific, and technical personnel. Environmental scientists and geoscientists search for locations likely to yield coal or mineral ores in sufficient quantity to justify extraction costs. Using sophisticated technologies and equipment, such as the Global Positioning System (GPS)—a satellite system that locates points on the earth using radio signals transmitted by satellites—surveyors help to map areas for mining. Mining and geological engineers examine seams for depth and purity, determine the type of mine to build, and supervise the construction, maintenance, and operation of mines. Mechanical engineers oversee the installation of equipment, such as heat and water systems; electrical engineers oversee the installation and maintenance of electrical equipment; civil engineers oversee the building and construction of minesites, plants, roads, and other infrastructure; safety engineers direct health and safety programs; chemical engineers develop the chemical processes for transforming mined products into consumer goods, such as medications and fertilizers; and materials engineers determine the usefulness of mined ore and also develop processes for transforming the minerals into products.

Environmental engineers play an increasingly important role in mining, given environmental concerns and stringent Federal, State, and local regulations imposed on all operations. Restrictions imposed by environmental regulations make obtaining permits for new mine development projects increasingly difficult. Mine owners and operators face substantial penalties should they fail to abide by current regulations. In addition, both Federal regulations, such as the Surface Mining Control and Reclamation Act (SMCRA), and State laws require that land reclamation be part of the mining process. Reclamation plans usually must be approved by both government officials and local interest groups. When a mining operation is closed, the land must be restored to its premine condition, which can include anything from leveling soil and removing waste to replanting vegetation.

Exploration, mine design, impact assessment, and restoration efforts can depend on computer analysis. In addition, rapid technological advancements, particularly in processing-plant operations, are the result of increased computerization. This has led to a growing reliance on computer professionals, such as systems analysts, computer software engineers, and computer scientists.

Training and Advancement

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Workers in mining production occupations usually must be at least 18 years old, in good physical condition, and able to work in confined spaces. A high school diploma is not necessarily required. Most workers start as helpers to experienced workers and learn skills on the job; however, formal training is becoming more important, as more technologically advanced machinery and mining methods are used. Some employers prefer to hire recent graduates of high school vocational programs in mining or graduates of junior college or technical school programs in mine technology. Such programs usually are found only at schools in mining areas.

Mining companies must offer formal training in either classrooms or training mines for a few weeks before new miners actually begin work. The Federal Mine Safety and Health Act of 1977 mandates that each U.S. mine have an approved worker training program in health and safety issues. Each plan must include at least 40 hours of basic safety training for new miners with no experience in underground mines, and 24 hours for new miners in surface mines. In addition to new miner training, each miner must receive at least 8 hours of refresher safety training a year, and miners assigned to new jobs must receive safety training relating to their new task. The U.S. Mine Safety and Health Administration (MSHA) also conducts classes on health, safety, and mining methods, and some mining machinery manufacturers offer courses in machine operation and maintenance as well. The MSHA has recently put interactive training materials on its Website, and also has translated many of the training materials into Spanish. Increasingly, mines are employing more high-tech tools for miner training, such as machinery simulators and virtual reality simulators. By simulating actual mine conditions and emergencies, mine workers are better prepared and companies can instantly assess a mineworker?s progress and skills.

As production workers gain more experience, they can advance to higher paying jobs requiring greater skill. A mining machine operator?s helper, for example, might become an operator. When vacancies occur, announcements are posted, and all qualified workers can bid for the job. Positions are filled on the basis of seniority and ability. Miners with significant experience or special training also can become mine safety, health, and compliance officers, whose duties include mine safety inspection. According to MSHA, a mine safety, health, and compliance officer needs at least 5 years' experience as a miner, or a degree in mining engineering.

For professional and managerial positions in mining, a master?s degree in engineering, one of the physical sciences, or business administration, is preferred. A number of colleges and universities have mining schools or departments and programs in mining or minerals. Environmental positions require regulatory knowledge and a strong natural science background, or a background in a technical field, such as environmental engineering or hydrology. To date, most environmental professionals have been drawn from the ranks of engineers and scientists who have had experience in the mining industry.

Universities and mining schools have introduced more environmental coursework into their programs, and mining firms are hiring professionals from existing environment-related disciplines and training them to meet their companies? needs. Additionally, specialized mine technology programs are offered by a few colleges. Enrollment in these programs can lead to a certificate in mine technology after 1 year, an associate degree after 2 years, or a bachelor?s degree after 4 years. Courses cover areas such as mine ventilation, roof bolting, and machinery repairs.

Outlook

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Wage and salary employment in mining is expected to decline by 13 percent through the year 2014, compared with 14 percent growth projected for the entire economy. This continuing long-term decline is due to increased productivity resulting from technological advances in mining operations and larger mining equipment, consolidation, international competition, and stringent environmental regulations. Employment is expected to decline substantially in coal and metal ore mining, but only slightly in nonmetallic mineral mining.

Advances in mining technology will adversely affect employment in mining as new machinery and processes increase worker productivity. New mining machines that operate remotely by computer and self-diagnose mechanical problems require fewer workers for operation and maintenance. Advances in longwall and surface mining, which are less labor intensive, also have increased productivity, as have improvements in transportation and processing. Additionally, innovations such as roof bolting, self-advancing roof supports, and continuous mining machinery have led to safer, more efficient operations.

In the past, low commodity prices caused domestic production to decline, but as prices for metals increase due to increasing demand from China and India, domestic production is picking up and moderating the loss of mining jobs. Worldwide demand is expected to continue to increase which is expected to result in more exploration and greater domestic production.

Environmental concerns will continue to affect mining operations. Increasingly, government regulations are restricting access to land and restricting the type of mining that is performed in order to protect native plants and animals and decrease the amount of water and air pollution. As population growth expands further into the countryside, new developments are competing for land with mine operators, and residents are increasing their opposition to nearby mining activities.

The products of the coal mining industry are used to produce electricity and steel products so demand for coal should remain high. Although production of coal is expected to increase, employment will decline by about 23 percent through 2014 as more efficient and automated production operations require less labor. Increased competition should lead to further consolidation in the industry.

The long-term outlook for coal depends on how electric utility companies—the major consumers of coal—respond to provisions of the Clean Air Act Amendments of 1990, which attempt to limit the emission of sulfur dioxide and other harmful pollutants caused by the burning of coal. Compliance involves the installation of costly cleaning and monitoring equipment or increased use of low-sulfur coal. As energy plants seek cleaner burning fuel, many new power plants are being built to run on natural gas. If the demand for coal contracts as a result of stricter environmental regulations, employment in mines will decline further, as mine operators are forced to decrease production. However, recent increases in the price of natural gas have caused some electricity producers to delay the conversion to natural gas, which is helping to retain coal production.

Despite the trend towards cleaner burning fuel, the United States still is highly dependent on coal as a source of energy. Coal accounts for half of the electricity production in this country because it is the cheapest and most abundant fossil fuel. The rising demand for cleaner burning fuel has resulted in regional shifts in coal production and markets. Because of this, lower sulfur Western coal now accounts for an increasing share of output. This trend is resulting in a gradual regional shift in employment from the Eastern States to the West. Improvements in clean coal technologies also may help the industry cope with increasingly restrictive regulations through projects such as the Integrated Gasification Combined Cycle (IGCC). This technology combines traditional coal gasification with gas-turbine and steam power to generate electricity more efficiently and reduce carbon and sulfur dioxide emissions.

As in coal mining, continuing productivity increases and industry consolidation are expected to cause employment in the metal ore mining industry to decline through 2014. Because metals are used primarily as raw materials by other industries, such as telecommunications and steel, chemical, drug, aerospace, and automobile manufacturing, the strength of the metal ore mining industry is greatly affected by the strength of the industries that consume its products. Metal ore mining is also the sector most vulnerable to international competition. Many nations have mineral resources and, for some developing countries especially, mineral resources are one of the few goods they export. However, increasing worldwide demand for metals is causing metals prices to increase and production to rise.

Employment in nonmetallic mineral mining should decline slightly—2 percent—because of continued demand for crushed stone, cement, and gravel used in construction activities. Like the metal mining industry, the nonmetallic mineral mining industry is influenced by the strength of the industries that use nonmetals in the manufacture of their products; these are industries in which employment is impacted by swings in the economy. Nonmetallic minerals are used to make concrete and agricultural chemicals and also are used as materials in residential, nonresidential, and maintenance construction. The nonmetallic mineral mining industry experienced slight employment growth over the past decade, largely attributable to construction. The demand for crushed stone and gravel should remain strong over the next few years because of demand for residential housing, roads, and airports, but productivity increases should keep employment relatively unchanged. Worker separation rates are high in nonmetallic mineral mining because most mines are small and operate only during warm months; many workers laid off during the winter find jobs in other industries and must be replaced when the mines reopen. Jobs in nonmetallic mineral mining attract many migrant workers and those looking for summer employment.

Despite declining employment, job opportunities should be favorable for construction, extraction, and production workers in coal mining and nonmetallic mineral mining. Many miners are approaching retirement age and younger miners will need to be hired to replace the retirees. Job opportunities for professional workers, such as scientists and engineers, should be good as many of these workers are also nearing retirement age.

Earnings

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Average wage and salary earnings in mining were significantly higher than the average for all industries. In 2004, production workers, earned $21.57 an hour in coal mining, $22.91 an hour in metal mining, and $17.74 an hour in nonmetallic minerals mining compared to the private industry average of $15.67 an hour (table 2). Workers in underground mines spend time traveling from the mine entrance to their working areas, so that their paid workday is slightly longer than that of surface mine workers, 8 hours versus 7 1/4-hour shifts. Earnings in selected occupations in specified mining industries appear in table 3.

Table 2. Average earnings of nonsupervisory workers in mining, except oil and gas, 2004
Industry segment Weekly Hourly
 
Total, private industry $529 $15.67
 
Mining 909 19.85
  Coal mining 1,030 21.57
  Metal ore mining 1,034 22.91
  Nonmetallic mineral mining and quarrying 791 17.74

About 24 percent of mineworkers are union members or are covered by union contracts, compared with about 14 percent of workers throughout private industry. About 27.5 percent of workers in coal mining and 18.6 percent in nonmetallic mineral mining were union members in 2004, compared with about 13.9 percent of workers in metal mining. Union coal miners are primarily represented by the United Mine Workers of America (UMWA). The United Steelworkers of America, the International Union of Operating Engineers, and other unions also represent miners.

Workers covered by UMWA contracts receive 11 paid holidays, 12 days of paid vacation each year, 4 additional floating holidays, and 5 days of sick leave. However, coal miners generally must take their vacations during 1 of 3 regular vacation periods to assure a continuous supply of coal. As length of service increases, UMWA miners get up to 13 extra vacation days after 18 years of continuous employment. Union workers also receive benefits from a welfare and retirement fund.

Table 3. Median hourly earnings of the largest occupations in coal mining and nonmetallic minerals, except fuels, May 2004
Occupation Mining, except oil and gas All industries
First-line supervisors/managers of construction trades and extraction workers $27.66 $24.25
Mobile heavy equipment mechanics, except engines 19.15 18.34
Continuous mining machine operators 18.35 17.87
Operating engineers and other construction equipment operators 16.39 17.00
Truck drivers, heavy and tractor-trailer 15.01 16.11
Excavating and loading machine and dragline operators 15.20 15.37
Maintenance and repair workers, general 18.04 14.77
Crushing, grinding, and polishing machine setters, operators, and tenders 15.07 12.96
Helpers--extraction workers 14.89 12.66
Laborers and freight, stock, and material movers, hand 13.38 9.67


[Please note that the earnings and salary data listed here is usually from government sources and may be dated, so please make adjustments accordingly. If you would like to access current salary data for literally thousands of occupations, access our Salary Wizard.]



Sources of Additional Information

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For additional information about careers and training in the mining industry, contact:

  • American Geological Institute, 4220 King St., Alexandria, VA 22302. Internet: http://www.agiweb.org
  • Mine Safety and Health Administration, 1100 Wilson Blvd., Arlington, VA 22209-3939. Internet: http://www.msha.gov
  • National Mining Association, 101 Constitution Ave. NW., Suite 500 East., Washington, DC 20001. Internet: http://www.nma.org
  • Society for Mining, Metallurgy, and Exploration, Inc., 8307 Shaffer Parkway, Littleton, CO 80127. Internet: http://www.smenet.org
  • United Mine Workers of America, 8315 Lee Highway, Fairfax, VA 22031. Internet: http://www.umwa.org

Information on the following occupations in mining may be found in the 2006-07 Occupational Outlook Handbook:

*Source: Bureau of Labor Statistics, U.S. Department of Labor. Used by permission.




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