Uduak-Joe Ntuk was the 17th California ​State Oil and Gas Supervisor responsible for managing the California Geologic Energy Management Division (CalGEM). He was appointed by Governor Newsom in 2019.​​​ ​

Ntuk directed a statewide regulatory, technical, and field operations organization designed to emphasize the safe development of oil and natural gas conservation, which includes: protecting public health and safety, environmental quality, and the reduction and mitigation of greenhouse gas emissions associated with the development of hydrocarbon and geothermal resources in a manner that meets the energy needs of the state. He also serves as a Governor's representative to the Interstate Oil and Gas Compact Commission, Groundwater Protection Council and as a governing board member of the Baldwin Hills Conservancy.

He formerly served at the Director of Petroleum Administrator for the City of Los Angeles where he had oversight responsibility for oil and gas activity across the City. He's a technical professional with both public and private sector energy experience. Ntuk also taught engineering courses at California State University, Long Beach and serves as a member of the Long Beach Community College District Board of Trustees. He earned his Associate of Arts degree in Liberal Arts from Long Beach City College, Bachelor of Science in Chemical Engineering with a minor in Business from California State University, Long Beach and his Master of Science degree in Petroleum Engineering - Smart Oilfield Technologies from the University of Southern California.