GULF DRILLING & MAINTAENANCE COMPANY

Support Activities for Oil and Gas Operations

NAICS #213112 | This U.S. industry comprises establishments primarily engaged in performing support activities on a contract or fee basis for oil and gas operations (except site preparation and related construction activities). Services included are exploration (except geophysical surveying and mapping); excavating slush pits and cellars, well surveying; running, cutting, and pulling casings, tubes, and rods; cementing wells, shooting wells; perforating well casings; acidizing and chemically treating wells; and cleaning out, bailing, and swabbing wells. Contract drilling for oil and gas--are classified in U.S. Industry 213111, Drilling Oil and Gas Wells; Operating oil and gas field properties on a contract or fee basis--are classified in Subsector 211, Oil and Gas Extraction, based on the activity; Performing geophysical surveying and mapping services for oil and gas on a contract or fee basis--are classified in Industry 541360, Geophysical Surveying and Mapping Services; Oil and gas pipeline and related structures construction--are classified in Industry 237120, Oil and Gas Pipeline and Related Structures Construction; and Site preparation and related construction activities on a contract or fee basis--are classified in Industry 238910, Site Preparation Contractors.

Specialty Trade Contractors

NAICS #238 | The Specialty Trade Contractors subsector comprises establishments whose primary activity is performing specific activities (e.g., pouring concrete, site preparation, plumbing, painting, and electrical work) involved in building construction or other activities that are similar for all types of construction but that are not responsible for the entire project. The work performed may include new work, additions, alterations, maintenance, and repairs. The production work performed by establishments in this subsector is usually subcontracted from establishments of the general contractor type or operative builders but, especially in remodeling and repair construction, work also may be done directly for the owner of the property. Specialty trade contractors usually perform most of their work at the construction site, although they may have shops where they perform prefabrication and other work. Establishments primarily engaged in preparing sites for new construction are also included in this subsector.

There are substantial differences in types of equipment, work force skills, and other inputs required by specialty trade contractors. Establishments in this subsector are classified based on the underlying production function for the specialty trade in which they specialize. Throughout the Specialty Trade Contractors subsector, establishments commonly provide both the parts and labor required to complete work. For example, electrical contractors supply the current-carrying and noncurrent-carrying wiring devices that are required to install a circuit. Plumbing, Heating and Air-Conditioning contractors also supply the parts required to complete a contract.

Establishments that specialize in activities primarily related to heavy and civil engineering construction that are not normally performed on buildings, such as the painting of lines on highways are classified in Subsector 237, Heavy and Civil Engineering Construction.

Establishments that are primarily engaged in selling construction materials are classified in Sector 42, Wholesale Trade, or Sector 44-45, Retail Trade, based on the characteristics of the selling unit.

Electrical and Electronic Appliance, Television, and Radio Set Merchant Wholesalers

NAICS #42362 | This industry comprises establishments primarily engaged in the merchant wholesale distribution of household-type electrical appliances, room air-conditioners, gas and electric clothes dryers, and/or household-type audio or video equipment. Merchant wholesale distribution of gas household-type appliances (except gas clothes dryers)--are classified in Industry 423720, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers; and Merchant wholesale distribution of nonhousehold-type video cameras--are classified in Industry 423410, Photographic Equipment and Supplies Merchant Wholesalers.

Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers

NAICS #42381 | This industry comprises establishments primarily engaged in the merchant wholesale distribution of specialized machinery, equipment, and related parts generally used in construction, mining (except oil well) and logging activities. Establishments primarily engaged in the merchant wholesale distribution of oil well machinery and equipment are classified in Industry 423830, Industrial Machinery and Equipment Merchant Wholesalers.

Wholesale Trade Agents and Brokers

NAICS #42512 | This industry comprises wholesale trade agents and brokers acting on behalf of buyers or sellers in the wholesale distribution of goods. Agents and brokers do not take title to the goods being sold but rather receive a commission or fee for their service. Agents and brokers for all durable and nondurable goods are included in this industry. Establishments acting in the capacity of agents or brokers that operate using the Internet or other electronic means instead of a sales force are classified in Industry 425110, Business to Business Electronic Markets.

Engineering Services

NAICS #54133 | This industry comprises establishments primarily engaged in applying physical laws and principles of engineering in the design, development, and utilization of machines, materials, instruments, structures, processes, and systems. The assignments undertaken by these establishments may involve any of the following activities: provision of advice, preparation of feasibility studies, preparation of preliminary and final plans and designs, provision of technical services during the construction or installation phase, inspection and evaluation of engineering projects, and related services. Planning and designing computer systems that integrate computer hardware, software, and communication technologies--are classified in U.S. Industry 541512, Computer Systems Design Services; Performing surveying and mapping services of the surface of the earth, including the sea floor,--are classified in Industry 541370, Surveying and Mapping (except Geophysical) Services; Gathering, interpreting, and mapping geophysical data--are classified in Industry 541360, Geophysical Surveying and Mapping Services; Creating and developing designs and specifications that optimize the use, value, and appearance of products--are classified in Industry 541420, Industrial Design Services; Providing advice and assistance to others on environmental issues, such as the control of environmental contamination from pollutants, toxic substances, and hazardous materials-- are classified in Industry 541620, Environmental Consulting Services; and Both the design and construction of buildings, highways, and other structures or in managing construction projects--are classified in Sector 23, Construction, according to the type of project.

Other Electronic and Precision Equipment Repair and Maintenance

NAICS #811219 | This U.S. industry comprises establishments primarily engaged in repairing and maintaining (without retailing) electronic and precision equipment (except consumer electronics, computers and office machines, and communications equipment). Establishments in this industry repair and maintain equipment, such as medical diagnostic imaging equipment, measuring and surveying instruments, laboratory instruments, and radar and sonar equipment. Rewinding armatures and rebuilding electric motors on a factory basis--are classified in U.S. Industry 335312, Motor and Generator Manufacturing; Repairing stereo and other consumer electronic equipment--are classified in U.S. Industry 811211, Consumer Electronics Repair and Maintenance; Repairing computers and office machines--are classified in U.S. Industry 811212, Computer and Office Machine Repair and Maintenance; and Repairing communications equipment--are classified in U.S. Industry 811213, Communication Equipment Repair and Maintenance.