| A1 Lithium, Inc | 1108 E South Union Avenue | Midvale | UT | 84047 |
| AC Oil, LLC | 9 Exchange Place, Suite 600 | Salt Lake City | UT | 84111 |
| Alberta Gas Company | 1019 E 2000 B | Vernal | UT | 84078 |
| Altamont Energy Operating LLC | 8490 E Crescent Parkway, Suite 100 | Greenwood Villiage | CO | 80111 |
| American Gilsonite Co | 29950 S Bonanza Highway | Bonanza | UT | 84008 |
| American Potash, LLC | 880-580 Hornby Street | Vancouver | BC | V6C 3B6 |
| Anschutz Exploration Corporation | 555 17th Street, Ste 2400 | Denver | CO | 80202 |
| ARB Energy Utah, LLC | 600 Travis Street, Suite 6161 | Houston | TX | 77002 |
| Ashley Valley Operating Company LLC | 55 Waugh Drive, Suite 550 | Houston | TX | 77007-5837 |
| Bainbridge Uinta LLC | 3451 Shenandoah Street | Dallas | TX | 75205 |
| Bear River Energy, LLC | 1703 S Wheeling Way | Aurora | CO | 80012 |
| Beartooth Oil & Gas Co | PO Box 2564 | Billings | MT | 59103 |
| Benson-Montin-Greer Drl | 4900 College Blvd | Farmington | NM | 87402 |
| Berry Petroleum Company LLC | 11117 River Run Boulevard | Bakersfield | CA | 93311 |
| Blackstone Minerals NV, LLC | 792 Proud Eagle Lane | Las Vegas | NV | 89144 |
| Buzzards Bench, LLC | 1095 N SR 57 | Orangeville | UT | 84537 |
| C.S.V. Oil Exploration Co | 8823 S Redwood Road, Suite D-1 | West Jordan | UT | 84088 |
| Caerus Uinta, LLC | 1001 17th Street, Suite 1600 | Denver | CO | 80202 |
| Cannon | PO Box 2086 | Rock Springs | WY | 82902 |
| Capitol Operating Group, LLC | 5750 Johnston Street #103 | Lafayette | LA | 70503-5334 |
| CERSC-USGS-DOI | Box 25046. MS 939 | Denver | CO | 80225 |
| Citation Oil & Gas Corp | PO Box 690688 | Houston | TX | 77269 |
| Clear Creek CBM LLC | 752 S 500 E | Orem | UT | 84097-6360 |
| Coastal Plains Energy Inc | 6303 N Portland, Suite 208 | Oklahoma City | OK | 73112-3723 |
| Cobra Oil & Gas Corp | PO Box 8206 | Wichita Falls | TX | 76307-8206 |
| Cochrane Resources Inc | PO Box 1656 | Roosevelt | UT | 84066 |
| ConocoPhillips Company | Great Plains Business Unit | Houston | TX | 77252 |
| Delhi-Trading LLC | 195 Lockes Mountain Road | Durango | CO | 81301 |
| Diversified Energy LLC | 19501 E Main Street, Suite 200 | Parker | CO | 80138 |
| Drillex, LLC | 3300 N Triumph Boulevard, Suite 100 | Lehi | UT | 84043 |
| Elkhorn Exploration Co | 3637 W Plymouth Rock Cove | Lehi | UT | 84043 |
| Elk Operating Services, LLC | 1700 Lincoln Street, Suite 2550 | Denver | CO | 80203 |
| Emery Resource Holdings LLC | 10109 E Windrose Drive | Scottsdale | AZ | 85260 |
| Encana Oil & Gas (USA), Inc | 370 17th Street, Suite 1700 | Denver | CO | 80202-5632 |
| EnerQuest Operating, LLC | 12368 Market Drive | Oklahoma City | OK | 73114-8136 |
| EOG Resources, Inc | 1060 E Highway 40 | Vernal | UT | 84078-2833 |
| EP Energy E&P Company, LP | PO Box 4660 | Houston | TX | 77210-4660 |
| Evergreen Energy, Inc | 500 Market Street | Portland | TX | 78374 |
| Falcon Energy LLC | 1383 Bridal Court | Fruita | CO | 81521 |
| Finley Resources, Inc | PO Box 2200 | Fort Worth | TX | 76113 |
| Five-Nines Resources, LLC | 401 Edwards Street, Suite 2110 | Shreveport | LA | 71101 |
| Foster Energy Group, LLC | 8550 Stults Road | Dallas | TX | 75243 |
| Four Corners Energy, LLC | 500 Dallas Street, Suite 1650 | Houston | TX | 77002 |
| Genesis ST Operating LLC | 1670 Broadway, Suite 2000 | Denver | CO | 80202 |
| Golden Eagle Exploration, LLC | PO Box 1204 | Moab | UT | 84532 |
| Gordon Creek, LLC | 1207, 734 7th Avenue SW | Calgary | AB | T2P 3P8 |
| Green River Operating LLC | PO Box 2624 | Red Oak | TX | 75154 |
| Green River Water Disposal LLC | PO Box 790 | Red Lodge | MT | 59068 |
| Greylock Production, LLC | 500 Corporate Landing | Charleston | WV | 25311 |
| Heavy Sweet Oil, LLC | 1050 Center Drive, Studio 31 | Park City | UT | 84098 |
| Homeland Gas & Oil, Inc | PO Box 1574 | Roosevelt | UT | 84066-1574 |
| IACX Energy LLC | 5001 LBJ Freeway, Suite 300 | Dallas | TX | 75244 |
| Integrated Water Management LLC | PO Box 430 | Altamont | UT | 84001 |
| Iriart, Joe | 7465 Upper Miller Creek Road | Price | UT | 84501 |
| Javelin Energy Partners Management, LLC | 5221 N O'Connor Boulevard, Suite 1100 | Irving | TX | 75039 |
| KGH Operating Company | 2812 1st Avenue N, Suite 408 | Billings | MT | 59101 |
| KP Operations Corp | 1821 N Reservoir Road | Blanding | UT | 84511 |
| Kubick, John | 26109 210th Street | Bokoshe | OK | 74930-1002 |
| Linn Bros Oil & Gas Inc | PO Box 416 | Fruita | CO | 81521 |
| Mandrake Lithium USA, Inc. | 1108 E South Union Avenue | Midvale | UT | 84047 |
| Mar/Reg Oil Company | PO Box 18148 | Reno | NV | 89511 |
| Matrix Production Company | 5725 Commonwealth Blvd | Sugar Land | TX | 77479 |
| Maximum Energy Corporation | PO Box 1574 | Roosevelt | UT | 84066 |
| Middle Fork Energy Uinta, LLC | 1401 Wynkoop Street, Suite 300 | Denver | CO | 80202 |
| Moose Mountain Divide #1, LLC | PO Box 1656 | Roosevelt | UT | 84066-1656 |
| Morning Gun Exploration, LLC | 1601 Arapahoe Street, Box 1 | Denver | CO | 80202 |
| Mountain Fuel Supply Co | 180 E 100 S | Salt Lake City | UT | 84139 |
| Mountain Oil And Gas Inc | PO Box 1574 | Roosevelt | UT | 84066 |
| Mountain Sage Minerals, LLC | 9272 Jeronimo Road | Irvine | CA | 92618 |
| MountainWest Pipeline, LLC | 333 South State Street | Salt Lake City | UT | 84111 |
| NADK, LLC | 742 E 750 N | Orem | UT | 84097 |
| NAH Utah, LLC | 222 Main Street | Salt Lake City | UT | 84101 |
| National Fuel Corporation | PO Box 4892 | Parker | CO | 80134 |
| Negaunee, LLC | 1256 Capitol Dr. Suite 700 Box 389 | Pewaukee | WI | 53072 |
| New Water Financial LLC | PO Box 91 | Windsor | CO | 80550-0091 |
| NGL Supply Terminal Solution Mining, LLC | 4505 S Wasatch Boulvard, Suite 130 | Salt Lake City | UT | 84124 |
| NNOGC Exploration & Production, LLC | PO Box 4439 | Window Rock | AZ | 86515 |
| North Shore Exploration & Production, LLC | 105 Edgeview Drive, Suite 400 | Broomfield | CO | 80021 |
| Northstar Gas, LLC | 752 S 500 E | Orem | UT | 84097-6360 |
| Northstar Gas Company of Texas | 6363 San Felipe Street, Apt 491 | Houston | TX | 77057-2768 |
| Orphan-No Responsible Operator | 1594 W North Temple, Suite 1210 | Salt Lake City | UT | 84114 |
| Ovintiv USA, Inc. | 4 Waterway Square Place, Suite 100 | The Woodlands | TX | 77380 |
| Paradox Upstream, LLC | 500 Dallas Street, Suite 1650 | Houston | TX | 77002 |
| Peak Oil Tool | PO Box 304 | Loma | CO | 81524 |
| Petroglyph Operating Co | PO Box 607 | Roosevelt | UT | 84066 |
| Petro Mex, LLC | PO Box 6724 | Farmington | NM | 87499 |
| PO&G Operating, LLC (POGO) | 5847 San Felipe, Suite 3200 | Houston | TX | 77057 |
| Price River Energy, LLC | 950 Echo Lane, Suite 200 | Houston | TX | 77024 |
| Pride Ventures LLC | PO Box 1034 | Moab | UT | 84532 |
| Quinex Energy Corp | 465 S 200 W, Suite 300 | Bountiful | UT | 84010 |
| Richardson Operating Co | 4601 DTC Boulevard, Suite 725 | Denver | CO | 80237-3468 |
| Richardson Operating Company | 4601 DTC Boulevard, Suite 725 | Denver | CO | 80237 |
| Rim Operating Inc | 5 Inverness Drive E | Englewood | CO | 80112 |
| Rim Southwest Corp | PO Box 2058 | Farmington | NM | 87499-2058 |
| Robert L Bayless Producer, LLC | 621 17th Street, Suite 2300 | Denver | CO | 80293 |
| Rose Petroleum (Utah) LLC | 7310 W 52nd Avenue, Suite A116 | Arvada | CO | 80002 |
| Rosewood Resources Inc | 2101 Cedar Springs Road | Dallas | TX | 75201-2104 |
| Running Foxes Petroleum, Inc | 14550 E Easter Avenue, Suite 200 | Centennial | CO | 80112-4222 |
| Sage Water Resources, LLC | PO Box 1130 | Duchesne | UT | 84021 |
| Savoy Energy, LLC | 475 S 440 E | Ephraim | UT | 84627 |
| Scout Energy Management, LLC | 13800 Montfort Drive, Suite 100 | Dallas | TX | 75240 |
| Seeley Oil Company, LLC | PO Box 1058 | Cortez | CO | 81321 |
| SEP Cisco Dome II, LLC | 531 E 770 N | Orem | UT | 84097 |
| SEP NOSR LLC | 531 E 770 N | Orem | UT | 84097 |
| Shiny One Operating Company, LLC | PO Box 1667 | Vernal | UT | 84078 |
| Skyline Operating Company, LLC | 1517 Grove Drive | Alpine | UT | 84004 |
| Stewart Petroleum Corp | 5575 DTC Parkway, Suite 120 | Greenwood Village | CO | 80111 |
| Stronex Resources, LLC | 1367 W 110 N | Pleasant Grove | UT | 84062 |
| Summit Operating, LLC | 531 E 770 N | Orem | UT | 84097-4102 |
| Synergy Operating, LLC | PO Box 5513 | Farmington | NM | 87499 |
| T.E.S. Water Injection, LLC | PO Box 597 | Cortez | CO | 81321-0597 |
| Tall Dune Resources, LLC | 103 Starwood | Boerne | TX | 78006 |
| Tidewater Oil & Gas Company, LLC | 55 West 39th Street, 18th Floor | New York | NY | 10018 |
| Tiger Energy Operating, LLC | 11111 Santa Monica Boulevard, Suite 1700 | Los Angeles | CA | 90025 |
| TOC Oil, Inc | 1538 Wazee Street, Suite 200 | Denver | CO | 80202 |
| True Oil, LLC | 455 N Poplar Street | Casper | WY | 82602 |
| Uintah Investors LLC | 531 E 770 N | Orem | UT | 84097 |
| Uinta-Taylor Fund, LTD | 368 S Summarell Lane | Roosevelt | UT | 84066 |
| Uinta Wax Operating, LLC | 5128 Apache Plume Road, Suite 300 | Fort Worth | TX | 76109 |
| Urban Oil & Gas Group, LLC | 1000 E 14th Street, Suite 300 | Plano | TX | 75074 |
| USDOE-LM | 2597 Legacy Way | Grand Junction | CO | 81503 |
| US Oil & Gas Inc | PO Box 698 | Cortez | CO | 81321 |
| Utah Gas Operating Solutions, LLC | 4600 Wells Fargo Center | Minneapolis | MN | 55402 |
| Utah Gas Op Ltd | 1125 Escalante Drive | Rangely | CO | 81648 |
| Valence Resources, LLC | 835 East 2nd Avenue, Suite 202 | Durango | CO | 81301 |
| Vaquero Uinta, LLC | 4700 Stockdale Highway, Suite 120 | Bakersfield | CA | 93309 |
| Virtus Oil & Gas Corp | 848 N Rainbow Blvd 170 | Las Vegas | NV | 89107 |
| Wapiti Operating, LLC | 1310 W Sam Houston Parkway N | Houston | TX | 77043-4011 |
| Water Disposal Inc | 563 N Artists Way | Layton | UT | 84040 |
| WEM Operating, LLC | 3319 N university Avenue, Suite 200 | Provo | UT | 84604 |
| Wesco Operating, Inc | PO Box 1650 | Casper | WY | 82602 |
| Wesgra Corporation | PO Box 310367 | Mexican Hat | UT | 84531 |
| Western Resources and Clean Energy, LLC | 395 E 100 S | Manti | UT | 84642 |
| Weststar Exploration Co | PO Box 56203 | Houston | TX | 77256 |
| Wexpro Company | 2221 Westgate | Rock Springs | WY | 82902-0458 |
| Wind River Resources Corp | 3245 Big Spruce Way | Park City | UT | 84098 |
| Winds Exploration and Production, LLC | 12818 Secret Forest Court | Cypress | TX | 77429 |
| Wolverine Gas & Oil Company of Utah, LLC | One Riverfront Plaza | Grand Rapids | MI | 49503-2616 |
| Woosley, James P | Box 1034 | Moab | UT | 84532 |
| XCL AssetCo, LLC | 600 N Shepherd Drive, Suite 390 | Houston | TX | 77007 |
| XTO Energy Inc | 22777 Springwoods Village Parkway | Spring | TX | 77389 |
| Zephyr Salt Wash, LLC | 7310 W. 52nd Ave., Suite A116 | Arvada | CO | 80002 |
