As used in the Oklahoma Carbon Capture and Geologic Sequestration Act: 1. “Approved reservoir” means a reservoir that is determined by the Corporation Commission to be suitable for the receipt, storage or sequestration of injected carbon dioxide therein; 2. “Capture” means capturing: a. CO2 emissions at their source, including power plants, industrial facilities, or other emissions sites before the emissions are released into the atmosphere, and b. CO2 from the atmosphere through the process of direct air capture; 3. “Carbon dioxide” or “CO2” means an inorganic compound containing one carbon atom and two oxygen atoms, and that exists as a gas at standard temperature and pressure. Carbon dioxide is an inert, stable, colorless, odorless, nontoxic, incombustible, inorganic gas that is dissolvable in water and is naturally present, such as in underground locations and in the atmosphere as a trace gas; 4. “Carbon sequestration” means underground storage or sequestration of carbon dioxide in one or more reservoirs; 5. “Class VI CO2 injection well” means an artificial excavation or opening in the ground made by digging, boring, drilling, jetting, driving, or another method and is used to inject or transmit carbon dioxide into one or more reservoirs for long-term storage; 6. “Class VI CO2 capture and compression equipment” means the equipment, separation units, processing units, processing plants, pipe, buildings, pumps, compressors, meters, facilities, motors, fixtures, materials, and machinery, and all other improvements used in the operation of any of them, and property, real or personal, intangible or tangible, either attributable to or relating to, or located thereon, used for the purpose of: a. capturing carbon dioxide from a source that produces carbon dioxide, and/or b. compressing or otherwise increasing the pressure of carbon dioxide; 7. “CO2 pipeline” means any pipeline, compressors, pumps, meters, facilities, valves, fittings, right-of-way markers, cathodic protection ground beds, anodes, rectifiers, and any other cathodic protection devices, and other associated equipment, appurtenances and fixtures located on, attributable to or used in connection with the same, and used for the purpose of transporting carbon dioxide for carbon sequestration in this state or another state, excluding: a. CO2 capture and compression equipment at the source of the carbon dioxide, and b. pipelines that are part of a CO2 sequestration facility; 8. “CO2 stream” means CO2 that has been captured from an emissions source, including any incidental associated substances derived from the source materials and the capture process, and any substance added to the stream to enable or improve the injection process; 9. “CO2 sequestration facility” means the approved reservoir(s), and all associated underground equipment and pipelines, all associated surface buildings and equipment, and all associated Class VI CO2 injection wells, utilized for carbon sequestration in a defined geographic boundary established by the Corporation Commission, excluding any: a. CO2 capture and compression equipment at the source of the carbon dioxide, and b. CO2 pipeline transporting carbon dioxide to the facility from a source located outside the geographic boundaries of the surface of the facility; 10. “CO2 storage unit” means a unit created pursuant to this act as part of a CO2 sequestration facility under which the pore space of an approved reservoir is aggregated and communitized for the purpose of injection and storage of CO2; 11. “Commission” means the Corporation Commission as established by Section 15 of Article IX of the Oklahoma Constitution; 12. “Common source of supply” shall have the same meaning as in Section 86.1 of Title 52 of the Oklahoma Statutes; 13. “Department” means the Department of Environmental Quality as established by Section 2-3-101 et seq. of this title; 14. “Enhanced oil or gas recovery” means the increased recovery of hydrocarbons, including oil and gas, from a common source of supply achieved by artificial means or by the application of energy extrinsic to the common source of supply, such as pressuring, cycling, pressure maintenance or injection of a substance or form of energy, such as injection of water and/or carbon dioxide, including immiscible and miscible floods; provided, that enhanced oil or gas recovery shall not include injection of a substance or form of energy for the sole purpose of either: a. aiding in the lifting of fluids in the well, or b. stimulation of the reservoir at or near the well by mechanical, chemical, thermal or explosive means; 15. “Facility operator” means any person authorized by the Corporation Commission to operate a CO2 sequestration facility, including any person designated by the Commission to operate a CO2 storage unit as part of a CO2 sequestration facility authorized under this act; 16. “Facility owner” means the person who owns the CO2 sequestration facility, and any cost-bearing owners in a CO2 storage unit as part of a CO2 sequestration facility authorized under this act; 17. “Gas” shall have the same meaning as in Section 86.1 of Title 52 of the Oklahoma Statutes; 18. “Governmental entity” means any department, commission, authority, council, board, bureau, committee, legislative body, agency, beneficial public trust, or other establishment of the executive, legislative or judicial branch of the United States, the State of Oklahoma, any other state in the United States, the District of Columbia, the territories of the United States, and any similar entity of any foreign country; 19. “Oil” shall have the same meaning as in Section 86.1 of Title 52 of the Oklahoma Statutes; 20. “Person” means any individual, proprietorship, association, firm, corporation, company, partnership, limited partnership, limited liability company, joint venture, joint stock company, syndicate, trust, organization, committee, club, governmental entity, or other type of legal entity, or any group or combination thereof either acting in concert or as a unit; 21. “Pore space” shall have the same meaning as in Section 6 of Title 60 of the Oklahoma Statutes; 22. “Private operator” means any person that is either a facility operator or an operator of a CO2 pipeline, but that is neither a public utility nor a common carrier as such terms are defined by the Oklahoma Statutes; and 23. “Reservoir” means any portion of a separate and distinct geologic or subsurface sedimentary stratum, formation, aquifer, cavity or void, whether naturally occurring or artificially created, including an oil or gas formation, saline formation, or coal seam. Added by Laws 2009, c. 429, § 2, emerg. eff. June 1, 2009. Amended by Laws 2011, c. 264, § 1; Laws 2025, c. 247, § 4, eff. Nov. 1, 2025.
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