Enbridge Inc. is a Canadian multinational pipeline and energy company headquartered in Calgary, Alberta, Canada. Enbridge owns and operates pipelines throughout Canada and the United States, transporting crude oil, natural gas, and natural gas liquids, and also generates renewable energy. Enbridge's pipeline system is the longest in North America and the largest oil export pipeline network in the world. Its crude oil system consists of 28,661 kilometres of pipelines. Its 38,300 kilometre natural gas pipeline system connects multiple Canadian provinces, several US states, and the Gulf of Mexico. The company was formed by Imperial Oil in 1949 as the Interprovincial Pipe Line Company Limited to transport Alberta oil to refineries. Over time, it has grown through acquisition of other existing pipeline companies and the expansion of their projects.
Oklahoma Gas & Electric Company is a regulated electric utility company that serves over 843,000 customers in Oklahoma and Arkansas, including 1.5 million people in the Oklahoma City Metropolitan Area. It is the leading subsidiary of OGE Energy Corp., with headquarters in downtown Oklahoma City. OGE Energy is also the former parent of Enogex Inc., a natural gas pipeline business which merged with CenterPoint Energy's midstream business to form Enable Midstream in 2013, in 2021 OGE and CenterPoint sold their general partnership in Enable Midstream to Energy Transfer. OGE Energy and its subsidiaries have about 3,100 employees.
TC Energy Corporation is a major North American energy company, based in the TC Energy Tower building in Calgary, Alberta, Canada, that develops and operates energy infrastructure in Canada, the United States, and Mexico. The company operates three core businesses: Natural Gas Pipelines, Liquids Pipelines and Energy.
TransAlta Corporation is an electricity power generator and wholesale marketing company headquartered in Calgary, Alberta, Canada. It is a privately owned corporation and its shares are traded publicly. It operates 76 power plants in Canada, the United States, and Australia. TransAlta operates wind, hydro, natural gas, and coal power generation facilities. The company has been recognized for its leadership in sustainability by the Dow Jones Sustainability North America Index, the FTSE4Good Index, and the Jantzi Social Index. TransAlta is Canada's largest investor-owned renewable energy provider.
Plains All American Pipeline, L.P. is a master limited partnership engaged in pipeline transport, marketing, and storage of liquefied petroleum gas and petroleum in the United States and Canada. Plains owns interests in 18,370 miles (29,560 km) of pipelines, storage capacity for about 75 million barrels of crude oil, 28 million barrels of NGLs, 68 billion cubic feet of natural gas, and 5 natural gas processing plants. The company is headquartered in the Allen Center in Downtown Houston, Texas. Plains is a publicly traded Master limited partnership. PAA owns an extensive network of pipeline transportation, terminalling, storage and gathering assets in key crude oil and NGL producing basins and transportation corridors at major market hubs in the United States and Canada.
Petroleum production in Canada is a major industry which is important to the overall economy of North America. Canada has the third largest oil reserves in the world and is the world's fourth largest oil producer and fourth largest oil exporter. In 2019 it produced an average of 750,000 cubic metres per day (4.7 Mbbl/d) of crude oil and equivalent. Of that amount, 64% was upgraded from unconventional oil sands, and the remainder light crude oil, heavy crude oil and natural-gas condensate. Most of the Canadian petroleum production is exported, approximately 600,000 cubic metres per day (3.8 Mbbl/d) in 2019, with 98% of the exports going to the United States. Canada is by far the largest single source of oil imports to the United States, providing 43% of US crude oil imports in 2015.
Enmax Corporation is a vertically integrated utility with operations across Alberta, Canada, and in Maine, U.S. Through its subsidiaries, ENMAX Power Corporation and Versant Power, ENMAX owns and operates transmission and distribution utilities that deliver electricity to customers in Calgary, Alberta, and northern and eastern Maine. Through ENMAX Energy Corporation, ENMAX owns and operates power generation facilities and offers electricity and natural gas products and services to residential, commercial and industrial customers across Alberta.
Boardwalk Pipeline Partners, LP, which conducts business through its primary subsidiary Boardwalk Pipelines, LP and its subsidiaries, is an energy company based in Houston, Texas. It is a master limited partnership operating in the midstream portion of the natural gas and natural gas liquids (NGLs) industry, primarily providing transportation and storage for those commodities. Boardwalk owns approximately 14,365 miles (23,118 km) of natural gas and NGLs pipelines and underground storage caverns having an aggregate capacity of approximately 205 billion cubic feet (Bcf) of working natural gas and 24.0 million barrels of NGLs. Boardwalk's pipeline system originates in the Gulf Coast region, Oklahoma and Arkansas and extends north and east to the Midwestern states of Tennessee, Kentucky, Illinois, Indiana, and Ohio, and Boardwalk's NGLs pipeline and storage facilities are located in Louisiana and Texas.
WGL Holdings, Inc., is a public utility holding company that serves more than 1 million customers in the District of Columbia, Maryland, and Virginia. A subsidiary of AltaGas, it provides natural gas, electricity, sustainable energy, carbon neutrality and energy services, and also is engaged in natural gas exploration, production, and storage. The company operates four divisions: Washington Gas, WGL Energy, WGL Midstream, and Hampshire Gas.
EQT Corporation is an American energy company engaged in hydrocarbon exploration and pipeline transport. It is headquartered in EQT Plaza in Pittsburgh, Pennsylvania.
Canada's natural gas liquids industry dates back to the discovery of wet natural gas at Turner Valley, Alberta in 1914. The gas was less important than the natural gasoline - "skunk gas" it was called, because of its distinctive odour - that early producers extracted from it. That natural gas liquid (NGL) could be poured directly into an automobile's fuel tank.
Natural gas has been used almost as long as crude oil in Canada, but its commercial development was not as rapid. This is because of special properties of this energy commodity: it is a gas, and it frequently contains impurities. The technical challenges involved to first process and then pipe it to market are therefore considerable. Furthermore, the costs of pipeline building make the whole enterprise capital intensive, requiring both money and engineering expertise, and large enough markets to make the business profitable.
Through the 1996 Electric Utilities Act the Alberta's deregulated electricity market began.
Natural gas was Canada's third largest source of energy production in 2018, representing 22.3% of all energy produced from fuels in the country. By contrast, the share of fuel-based energy production from natural gas in 2013 was 17.0%, indicating a growth rate of approximately 1.06% per year.
National Fuel Gas Company is a diversified energy company with $6.2 billion in assets distributed among the following five operating segments: Exploration and Production, Pipeline and Storage, Gathering, Utility, and Energy Marketing. National Fuel Gas was incorporated in 1902 and is based in Williamsville, New York.
Although there are numerous oil companies operating in Canada, as of 2009, the majority of production, refining and marketing was done by fewer than 20 of them. According to the 2013 edition of Forbes Global 2000, canoils.com and any other list that emphasizes market capitalization and revenue when sizing up companies, as of March 31, 2014 these are the largest Canada-based oil and gas companies.
The Alberta Electric System Operator (AESO) is the non-profit organization responsible for operating Alberta, Canada's power grid. AESO oversees the planning and operation of the Alberta Interconnected Electric System (AIES) in a "safe, reliable, and economical" manner. It is mandated by provincial legislation to act in the public interest and cannot own any transmission, distribution or generation assets.
Inter Pipeline Ltd. is a multinational petroleum transportation and infrastructure limited partnership that is ranked among North America's leading natural gas and NGL's extraction businesses. It is one of Alberta's top 100 companies in terms of profit (85) and assets (94).
Pembina Pipeline is a Canadian corporation that operates transportation and storage infrastructure delivering oil and natural gas to and from parts of Western Canada. Western Canada is the source of all products transported by Pembina pipeline systems.
Keyera is one of the largest midstream oil and gas operators in Canada. The company services oil and gas producers in Western Canada and transports natural gas liquids such as propane, ethane, butane, condensate and iso-octane to markets throughout North America. Keyera provides major oil producers with essential services by providing them with the means to store, fractionate, and transport various oil, gas and NGL products. The company operates an industry leading condensate system. It operates the largest iso-octane manufacturing plant in the world.
Can$14.09 Billion (2022) [1] 
Can$7.37 Billion (2019) [1]