K. Reynolds

Society of Petroleum Engineers, Inc. provides petroleum engineering services. The non-profit company is based in Allen, TX and has subsidiaries in United States, India and Canada.

Canvas Energy, Inc. engages in the acquisition, exploitation, exploration and production of onshore oil and natural gas. It focuses on deposits of Stack, Meramec and Osage, Oswego, and Woodford located in Oklahoma and the Texas Panhandle. The company was founded by Mark A. Fischer and Charles A. Fischer in April 1988 and is headquartered in Oklahoma City, OK.

Chrysaor Resources (UK) Holdings Ltd. used to explore crude oil and natural gas. It was an operating unit of Burlington Resource's International Division, which had offices in London and Houston. The company was headquartered in London, the United Kingdom.

Chaparral Energy LLC produces oil and natural gas. It specializes in enhanced oil recovery and has an inventory of carbon dioxide tertiary recovery projects in the Mid-Continent and Permian Basin. The company was founded by Mark A. Fischer and Charles A. Fischer, Jr. in April 1988 and is headquartered in Oklahoma City, OK.

Oklahoma Independent Petroleum Association operates as an oil and natural gas association. The company was founded in 1955 and is headquartered in Oklahoma City, OK.

YMCA of Greater Oklahoma City is a non-profit organization that aims to build better communities through various programs such as adventure guides, child development center, summer day camp, swim lessons, teen leadership, youth sports, and esports. The YMCA of Greater Oklahoma City is committed to putting Christian principles into practice to build a healthy spirit, mind, and body for all. The American company also offers membership, personal training, and corporate membership. The organization has a Christian mission and provides spiritual care, mission trips, and feeding programs. The non-profit company has several locations in Oklahoma City, including Bethany, Camp Classen, Chickasha area, Earlywine Park, Edward L. Gaylord Downtown, Guthrie, Lincoln Senior Center, Main Street, Mitch Park, North Side, Rankin, Rockwell Plaza, Stillwater YMCA Healthy Living Center.