Rockies/Other

Bakken Shale

Bakken Counties:

ND: Billings, Burke, Divide, Dunn, Golden Valley, McKenzie, Mountrail, Stark, Williams

MT: Richland, Roosevelt, Sheridan

Green River Basin

Green River Counties: WY: Lincoln, Sublette, Sweetwater, Uinta

Monterey

Monterey Counties: CA:Fresno, Kern, Kings, Los Angeles, Monterey, Orange, San Luis Obispo, Santa Barbara, Tulare, Ventura, Also prospective in portions of offshore California

Niobrara/Denver-Julesburg Basin

Niobrara DJ Counties:

CO: Adams, Arapahoe, Boulder, Broomfield, Douglas, Elbert, Larimer, Lincoln, Jefferson, Morgan, Weld

WY: Laramie, Goshen, Platte

Paradox Basin

Paradox Counties: CO: Dolores, Mesa, Montezuma, San Miguel
UT: Emery, Garfield, Grand, San Juan, Wayne

Piceance Basin

Piceance Counties: CO: Delta, Garfield, Gunnison, Mesa, Moffat, Pitkin, Rio Blanco

Powder River Basin

Powder River Counties: MT: Big Horn, Powder River
WY: Campbell, Converse, Johnson, Natrona, Niobrara, Sheridan, Weston

San Juan Basin

San Juan Counties:

CO: Archuleta, LaPlata, Montezuma

NM: McKinley, Rio Arriba, San Juan, Sandoval

Uinta Basin

Uinta Counties: UT: Carbon, Duchesne, Emery, Grand, Uintah, Wasatch (although the overwhelming majority of production in the Uinta Basin occurs in Duchesne and Uintah Counties)