Houston-headquartered ConocoPhillips is an independent exploration and production company that explores for, produces, transports and markets oil and natural gas worldwide. Its operations and activities span 15 countries, with a notable Alaska presence built over more than 50 years; the company is Alaska’s largest oil producer and operates major production hubs on the North Slope. ConocoPhillips places safety and environmental stewardship at the center of its global work.
Cenovus EnergyCenovus Energy is a Canadian-based integrated energy company headquartered in Calgary, with operations in Canada, the United States and the Asia Pacific region. It produces oil and natural gas, and its downstream business includes upgrading, refining and marketing operations in Canada and the U.S. Cenovus began independent operations in 2009 and acquired Husky Energy in 2021.OREGON, OH
ExxonMobilFor more than 140 years, ExxonMobil has grown from a regional U.S. kerosene marketer into a publicly traded petroleum and petrochemical company with operations in more than 56 countries. Its approximately 61,000 employees serve customers through the Exxon, Esso and Mobil brands while supporting energy and product needs across transportation, industry and everyday life.HONESDALE, PA
Obsidian Energy LtdCalgary-based Obsidian Energy Ltd. explores, develops and produces oil and natural gas from a focused portfolio of Alberta assets. Its distinctive operating mix pairs a large, contiguous Peace River heavy-oil land base with light-oil properties in Willesden Green and Viking, and the company reported average production of 28,200 boe/d in the second quarter of 2026. Obsidian also operates owned infrastructure across its core areas, supporting continued drilling and development.EDINBORO, PA
ALTIVIAFounded in 1986, Houston-headquartered ALTIVIA is a chemical producer operating four U.S. production facilities and shipping products to 35 countries. It identifies itself as the largest global producer of ketones and carbinols and operates a major merchant production facility for phenol, acetone, and alpha-methyl styrene in the Americas.HAVERHILL, OH