Oil Companies



Occidental Petroleum Corp.

Occidental Petroleum Corporation (NYSE:OXY) is an international oil and gas exploration and production company — the fourth-largest in the U.S., based on market capitalization — and our OxyChem subsidiary is a major North American chemical manufacturer.


Odyssey Petroleum Corp.

Odyssey Petroleum has changed its name to Petrichor Energy Inc. The new company, Petrichor Energy is an emerging oil and gas exploration company focused on sourcing and developing new oil and natural gas reserves in North and South America. The company expects to have its new website published on the Internet in the next few weeks.


OGDCL (Pakistan)

OGDCL is the national oil & gas company of Pakistan and the flagship of the country’s E&P sector. The Company is the local market leader in terms of reserves, production and acreage, and is listed on all three stock exchanges in Pakistan and also on the London Stock Exchange since December 2006. The Company is all set to ride the wave of E&P activity, equipped with its Vision & Mission, Business and Strategic Plan, a debt-free and robust balance sheet and healthy cash reserves. The Company is ready to take on the challenges of a volatile E&P industry. 


Oil & Natural Gas

Open Range Energy Corp.

Open Range Energy Corp. is a publicly traded Canadian energy company based in Calgary, Alberta with focused operations in the Deep Basin region of west central Alberta. Since its founding in late 2005 Open Range has grown from production of approximately 400 boe per day to a rate of 2,451 boe per day in Q4 2008. This growth has been achieved entirely through the drill bit.


Orca Exploration

Orca Exploration is an international public company engaged in hydrocarbon exploration, development and supply of natural gas in Tanzania, oil exploration in Italy and the development of high potential oil exploration and production opportunities in Europe, the Middle East and Africa. Orca and its employees are committed to ethically, socially and environmentally responsible development.


Orleans Energy

RMP Energy Inc. is a junior oil and gas company with high-quality assets concentrated in West Central Alberta and southeastern Saskatchewan.


Osage Energy Resources

Osage Energy Resources LLC, is a privately held oil and gas exploration and production company located in northeast Oklahoma. The corporate office is located in Bartlesville with a field office in Pawhuska. The Main shareholders have considerable interests in Africa, India UK and now USA




Pacific Rubiales

Pacific Rubiales is a public company listed on the Toronto and Colombian stock exchanges. The Company is the largest independent oil and gas exploration and production company in Colombia. Pacific Rubiales owns 100% of Pacific Stratus and Meta Petroleum Limited, two Colombian oil & gas operators which operate and own interests in, amongst others, the Rubiales and Piriri oil fields in Colombia’s Llanos Basin and the La Creciente natural gas field in northern Colombia.


Painted Pony Petroleum Ltd.

Painted Pony operations are focused in two core areas of the Western Canadian Sedimentary Basin. Our operations are focused in SE Saskatchewan for high netback, light, sweet oil and in NE British Columbia for high impact, multi zone, sweet gas.


Pan Orient Energy Corp.

Pan Orient is a Canadian publicly listed (TSX-V: POE) junior oil and natural gas company based in Calgary, Alberta, Canada. The Company's principal properties are divided into three distinct groups: 1) partially developed concessions located on-shore Thailand;  2) interests in production sharing contracts on-shore Indonesia; and 3) Canadian oil sand properties;


Panhandle Oil & Gas

The Company was founded in Range, Texas County, the Oklahoma Panhandle, in 1926, as Panhandle Cooperative Royalty Company and operated as a Co-op until 1979. At that time the Company was merged into Panhandle Royalty Company and its shares were registered with the SEC. On April 2, 2007 the Company’s name was changed to Panhandle Oil and Gas Inc


Paramount Resources

Paramount Resources Ltd. is a Canadian energy company which explores for, develops, processes, transports and markets petroleum and natural gas. Paramount has four operating units with distinct operating staff, capital budgets and targets in Kaybob; Grande Prairie; the Northern area which includes Northwest Alberta, the Liard Basin in the Northwest Territories and Northeast British Columbia; and the Southern area which includes production from southern Alberta, Montana and North Dakota. Paramount has adapted to a multitude of operating climates over the past 32 years and continues to record sustainable growth in value for shareholders.


Pearl Exploration and Production

Pearl Exploration and Production Ltd. ("Pearl" or the "Company") is a publicly held Canadian oil and gas company listed on the Toronto Stock Exchange under the symbol "PXX" and on the First North, (OMX Nordic Exchange) under the symbol "PXXS". The Company's focus is North American oil and gas interests, in particular, Alberta, Saskatchewan, Texas and California.


Penn Virginia Oil & Gas Corp

Headquartered in Radnor, PA and a member of the S&P SmallCap 600 Index, Penn Virginia Corporation (NYSE: PVA) is an independent oil and gas company engaged primarily in the development, exploration and production of oil and natural gas in various domestic onshore regions including Texas, Appalachia, the Mid-Continent and Mississippi.


Penn West

 In January 2011 Penn West Petroleum Ltd. converted from an income trust into an exploration and production company with Penn West now operating under the trade name Penn West Exploration (TSX: PWT, NYSE: PWE). Penn West is one of the largest conventional oil and natural gas producers in Canada. Penn West operates a significant portfolio of opportunities with a dominant position in light oil in Canada. Based in Calgary, Alberta, Penn West operates throughout western Canada on a land base encompassing over six million acres.




Petro Energy

Petro Energy  E&P is an oil & gas operating company with main objective is to explore, develop, and produce oil & gas in block 6 – Sudan



Petro Vista Energy

Petro Vista Energy Corp. (TSX.V:PTV) is an independent oil and gas exploration company currently in production in South America. The Company has exploration, development and production rights to over 727,031 gross leasehold acres (197,697 net) in Brazil and Colombia. The Company's goal is to build an upstream oil and gas company with exploration and production focused in the highest resource potential and commercially attractive countries in South America.


Petrobank Energy

Petrobank Energy and Resources Ltd. is an innovative Calgary-based oil and natural gas exploration, production and technology company with operations in Western Canada.




Petroleo Brasileiro SA (Petrobras)

We are a publicly traded corporation, the majority stockholder of which is the Government of Brazil, and we perform as an energy company in the following sectors: exploration and production, refining, oil and natural gas trade and transportation, petrochemicals, and derivatives, electric energy, biofuel and other renewable energy source distribution.


Petroleos de Venezuela, SA (PDVSA)


Petroleos Mexicanos


Petroleum Development of Oman (PDO)

PDO is the premier hydrocarbon exploration and production company in the Sultanate of Oman, and we hope that you will find this site both informative and interesting. We've tried to put together a mix of information that will give you an idea of who we are, what we do, how we do it and why.



Gran Tierra Energy Inc. is an international oil and gas exploration and production company headquartered in Calgary, Canada, incorporated and traded in the United States and operating in South America. The Company currently holds interests in producing and prospective properties in Colombia, Argentina, Peru and Brazil. The Company strategy is focused on establishing a portfolio of drilling opportunities to exploit undeveloped reserves to grow production, as well as undertaking exploration drilling to grow future reserves. 




PetroQuest Energy

PetroQuest Energy, Inc. is an independent energy company engaged in the exploration, development, acquisition and production of oil and natural gas reserves in East Texas, Arkoma Basin, South Louisiana and the shallow waters of the Gulf of Mexico.


Petro-reef Resources Ltd.

Petro-Reef Resources Ltd. is a Calgary- based crude oil and natural gas exploration and production company with producing properties in Alberta, Canada.



The Petroleum, Oil and Gas Corporation of South Africa (SOC) Limited (PetroSA), is South Africa's national oil company. It owns, operates and manages South Africa's petroleum industry commercial assets




Petsec Energy




Pine Cliff Energy Ltd.

Pine Cliff Energy Ltd. is a public company actively engaged in the acquisition of interests in petroleum and natural gas rights and the exploration, development and production of petroleum and natural gas.


Pinnacle Gas Resources, Inc.

Pinnacle Gas Resources, Inc. is an independent energy company engaged in the acquisition, exploration, and development of domestic onshore natural gas reserves. We strive to be a partner of choice with landowners, mineral owners, investors, and other energy developers, while acting as a model corporate citizen that positively impacts the communities where we live and work. Our corporate headquarters are located on historic Main Street in downtown Sheridan, Wyoming


Pioneer Natural Resources

Pioneer Natural Resources Company is a large independent exploration and production company with operations in the United States and South Africa.


Plains Exploration and Production Company


Polaris Resources


Premier Oil

Premier Oil plc is a growing FTSE 250 oil and gas exploration and production company with current interests in nine countries around the world. Our target is to deliver growth by building three quality businesses, in the North Sea, the Middle East/Pakistan and South East Asia.


ProspEx Resources

ProspEx has demonstrated that applying horizontal, multi-stage fracturing technology can revitalize conventional natural gas reservoirs in a challenging commodity price environment


Provident Energy

Provident Energy Ltd. is a Calgary-based corporation that owns and operates high quality midstream assets that include NGL extraction, fractionation, storage, transportation and marketing with access to markets across North America.


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