Bolt Technology Corporation engages in the manufacture and sale of marine seismic data acquisition equipment to the oil and gas industry worldwide. Bolt Technology Corporation operates in three segments: Seismic Energy Sources, Underwater Cables and Connectors, and Seismic Energy Source Controllers. The Seismic Energy Sources segment develops, manufactures, and sells marine seismic energy sources (air guns) and replacement parts. The Underwater Cables and Connectors segment provides underwater cables, connectors, hydrophones, depth and pressure transducers, and seismic source monitoring systems. The Seismic Energy Source Controllers segment offers air gun controllers/synchronizers, data loggers, and auxiliary equipment. The company serves marine seismic exploration contractors and oil and gas companies. Bolt Technology was founded in 1960 and is based in Norwalk, Connecticut.

Petrolifera Petroleum makes its living from the natural resources of South America. As a crude oil and natural gas exploration and production company, Petrolifera operates on more than 8 million acres of land located in Peru, Colombia, and Argentina. Petrolifera Petroleum Limited Argentine-based operations, which constitute the company's largest source of revenue, include a 100% stake in the Puesto Morales/Rinconada Concession in the Neuquen Basin. In 2007, Petrolifera produced an average of 8,000 bbl/d (barrels per day) of crude oil and more than 2,100 mcf/d (thousand cubic feet per day) of natural gas. Petrolifera Petroleum Limited largest shareholder is oil production company Connacher Oil and Gas, which owns about 25% of the company.

Helix Energy Solutions Group, Inc. operates as an offshore energy company. Helix Energy Solutions Group, Inc. provides development solutions and various other contracting services to the energy market, as well as to its oil and gas properties. Helix Energy Solutions Group, Inc. provides a range of contracting services primarily in the Gulf of Mexico, North Sea, the Asia Pacific, and West Africa regions primarily in deepwater. Helix Energy Solutions Group, Inc. offers development services comprising installation of subsea pipelines, flowlines, control umbilicals, manifolds, and risers; pipelay and burial; installation and tie-in of riser and manifold assembly; commissioning, testing, and inspection services; and cable and umbilical lay and connection. Helix Energy Solutions Group, Inc. also provides various production services, including inspection, repair, and maintenance of production structures, risers, pipelines, and subsea equipment; well intervention; life of field support; and intervention engineering. In addition, Helix Energy Solutions Group, Inc. offers decommissioning and remediation services; plugging and abandonment services; platform salvage and removal services; pipeline abandonment services; and site inspections. Helix Energy Solutions Group, Inc. offers its products and services to independent oil and gas producers and suppliers, pipeline transmission companies, and offshore engineering and construction firms. Helix Energy Solutions Group, Inc. was formerly known as Cal Dive International, Inc. and changed its name to Helix Energy Solutions Group, Inc. in March 2006. Helix Energy Solutions Group was founded in 1990 and is headquartered in Houston, Texas.

Denbury Resources was founded in 1951 and is headquartered in Plano, Texas.Denbury Resources, Inc. engages in the acquisition, development, operation, and exploration of oil and natural gas properties in the Gulf Coast region of the United States, primarily in Louisiana, Mississippi, Alabama, and Texas. Denbury Resources Inc. owns reserves of carbon dioxide (CO2) used for tertiary oil recovery east of the Mississippi River; and operating acreage in the Barnett Shale play near Fort Worth, Texas, as well as holds properties in southeast Texas. Denbury Resources Inc. also sells CO2 to third party industrial users.

Trivello Ventures has its adventures in petroleum. The oil and gas exploration company focuses on resources in Western Canada where it explores for and develops oil and gas in Alberta. Trivello Energy Corp. has wells in multiple areas in Alberta. Trivello's five wells produce about 50 barrels of oil per day; the Lucy project, in which it has a 10% interest, is not producing yet. In early 2010, hoping to lessen its dependence on the then-troubled natural gas business, it branched out into precious metals, acquiring two gold properties in the Northwest Territories. Trivello Energy Corp. was formed in 1994.

Esso S.A.F. specializes in the exploration and production of petroleum and has refining and distribution operations as well (through its two refineries at Fos-sur-Mer and Port-J�r�me Gravenchon). Key products include automobile and aviation fuels, distillates, heavy fuels, and other related products that are sold worldwide through the company's more than 700 service stations. In addition, Esso S.A.F. manufactures lubricants for both professional and private usage. Industry giant Exxon Mobil Corporation owns controls the exploration, production, refining, and marketing company.

The Wills Group willingly delivers petroleum products and related products and services to its customer base in southern Maryland. The Wills Group, Inc. operates four business subsidiaries: Dash-In Convenience Stores (with more than 25 locations); Delmarva Oil and Southern Maryland Oil (the largest home heating oil delivery service companies in the region); and Southern Maryland Oil (SMO) Motor Fuels (wholesale distribution of diesel, gasoline, and kerosene products, including CITGO, Chevron, and Shell-branded fuels). The Wills Group supplies 300 dealer-operated gas stations in Delaware, southern Maryland, and Washington, DC.

Warren Equities fills car tanks and stomachs in the US Northeast. The holding company sells fuel and groceries from more than 300 Xtra Mart brand service stations and convenience stores from Maine to Virginia. Warren's distribution companies supply those stores, as well as independent outlets, with gasoline, grocery, and tobacco products. Other Warren companies trade and store petroleum, provide environmental testing services, and make promotional signs and clothing. Founder Warren Alpert's foundation gives annual grants to medical researchers. Alpert died in 2007.

Acergy S.A. (formerly Stolt Offshore) has gone off the deep end. Acergy S.A. provides underwater engineering and construction services for offshore oil and gas producers. Using a fleet of 60 vessels (including three subsea construction ships, seven flexible pipelay ships, nine cargo barges, and 36 remotely operated vessels) Acergy lays flowlines and pipelines and provides construction, inspection, and maintenance services on offshore rigs. Acergy S.A. got its feet wet in the chilly North Sea, but it now operates in more-temperate waters. Acergy provides its integrated services to companies in offshore areas in more than 20 countries in Asia, Europe, the Middle East, North and South America, and West Africa.

Global Energy Development is the international exploration and production arm of US-based HKN. HKN owns 34% of Global Energy Development, which focuses on Latin America. Global Energy Development is active in Colombia, Panama, and Peru, where it has received six contracts and rights to explore for or produce oil and gas. Global Energy Development holds a more than 5 million acre portfolio in Latin America and has proved and probable reserves of 15.2 million barrels of oil equivalent. Global Energy Development core operations are in Colombia, where it has been involved workover and drilling development activities in several fields. Global Energy Development is also active in northeastern Peru and in the Garachine field in Panama.

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