State Regulations: Wyoming
The Wyoming Oil and Gas Conservation Commission (WOGCC) is the state agency authorized to regulate oil and gas exploration and production waste. The Wyoming Department of Environmental Quality (DEQ) administers general environmental protection regulations.
Wyoming Oil and Gas Conservation Commission
2211 King Blvd.
Casper, WY 82602 (street address)
P.O. Box 2640
Casper, WY 82602 (mailing address)
(307) 234-7147 (phone)
(307) 234-5306 (fax)
Wyoming Department of Environmental Quality
122 West 25th Street, Herscheler Building
Cheyenne, WY 82002
(307) 777-7937 (phone)
(307) 777-7682 (fax)
Disposal Practices and Applicable Regulations
Document # 4855, Agency (Oil and Gas Conservation Commission), General Agency, Board or Commission Rules, Chapter 4 (Environmental Rules, Including Underground Injection Control Program Rules for Enhanced Recovery and Disposal Projects), Section 1. Pollution and Surface Damage (Forms 14A and 14B) of the Wyoming Rules and Regulations contains the environmental rules administered by the WOGCC with respect to management options for exploration and production waste.
- Pit Disposal (Subsection (a) et seq.). The WOGCC approves applications to construct disposal pits provided that they will not cause contamination of surface or underground water, and endanger human health or wildlife.
- Landfarming, Landspreading, Roadspreading, and Road Application (Subsection (mm)). Landfarming and landspreading must be approved by the DEQ. Jurisdiction over roadspreading and road application is shared by the DEQ and the WOGCC.
- Slurry and Pit Fluid Injection (Subsection (tt) through (vv)). During the application of slurry injection, the pump pressure must be limited so that fractures will not extend to the base of an underground source of drinking water (USDW) or a groundwater aquifer. As a part of the application, the operator has to show the completion program for the well, the formation tops and the depth of the lowest USDW, the analyses of the fluid to be injected, and the estimated disposal volumes. The operator is also required to notify the WOGCC 24 hours prior to the disposal operation and give it the opportunity to witness the event. Wyoming regulations make no distinction between slurry injection and subfracture injection because the pressure is controlled through the calculated maximum fracture pressure and the volume.
- Other. The DEQ administers other regulatory programs, including discharges into surface waters and solid waste disposal facilities.