The North Sea Transition Authority (NSTA), known as the Oil and Gas Authority (OGA) until March 2022, is a private company limited by shares wholly owned by the Secretary of State for Energy Security and Net Zero. It is responsible for maximising the economic recovery of oil from the North Sea. It is empowered to license and regulate activity in relation to oil and gas in the United Kingdom, including oil and gas exploration, carbon capture and storage, and offshore gas storage.