| Anadarko Minerals, Inc. |
655 |
| Apex Energy LLC |
820 |
| Armstrong Operating, Inc. |
425 |
| Artex Oil Company |
447 |
| Ayers, Milan R. |
480 |
| Baldwin Lynch Energy Corp. |
673 |
| Balko, Inc. |
267 |
| Ballantyne Ventures LLC |
742 |
| Bensun Energy, LLC |
622 |
| Beren Corporation |
640 |
| Berexco LLC |
618 |
| Big Sky Energy, LLC |
827 |
| Big Snowy Resources LP |
437 |
| Blackjack Oil, Inc. |
368 |
| Brandon Oil Company |
863 |
| Briscoe Petroleum, LLC |
733 |
| Canyon Natural Gas, LLC |
410 |
| Cardinal Oil, LLC |
316 |
| Carrell Oil Company Dba Coco |
130 |
| Chaco Energy Company |
125 |
| Coalridge Disposal And Petroleum, Inc. |
1450 |
| Continental Resources Inc |
1550 |
| Coolidge, Tim & Billiette |
391 |
| Coolidge, Timothy J & Billiette Nebel |
271 |
| Cowry Enterprises, LTD. |
8 |
| Croft Petroleum Co. |
1720 |
| Denbury Onshore, LLC |
664 |
| Diamond Oil & Gas LLC |
797 |
| DL Energy, LLC |
513 |
| DNR Oil & Gas Inc. |
1807 |
| Drawings, LLC |
810 |
| Energyquest II, LLC |
755 |
| Enerplus Resources USA Corporation |
118 |
| EOG Resources, Inc. |
2322 |
| FH Petroleum Corp. |
563 |
| Fairways Exploration & Production, LLC |
617 |
| Forward Energy, LLC |
492 |
| Foundation Energy Management, LLC |
794 |
| Glacier Minerals, LLC |
707 |
| Glacier Production, Inc. |
2975 |
| Grand Resources, LTD. |
3035 |
| Great Plains Energy, Inc. |
753 |
| Grynberg, Jack J. |
3117 |
| American Midwest Oil & Gas Corp. |
744 |
| Hawley & Desimon |
3360 |
| Hawley Hydrocarbons, Merrill&Carol Hawley Dba |
3320 |
| Hawley Oil Company |
3340 |
| Hawley-Northrup |
3380 |
| Herco Exploration LLC |
406 |
| Hofland, James D. |
3497 |
| Bayswater Exploration & Production, LLC |
508 |
| BBX Operating Co. LLC |
293 |
| Beartooth Energy, LLC |
657 |
| Beartooth Oil & Gas Company |
620 |
| Brown, J. Burns Operating Company |
945 |
| Buckley, Michael T. |
1005 |
| Huntington Energy, LLC |
503 |
| Intermountain Leasing, Inc. |
318 |
| Burlington Resources Oil & Gas Company LP |
5000 |
| City Of Baker |
428 |
| Encana Oil & Gas (USA) Inc. |
5385 |
| Fulton Fuel Company |
2755 |
| FX Drilling Company, Inc. |
44 |
| G/S Producing, Inc. |
2782 |
| Abraxas Petroleum Corporation |
564 |
| Habets Oil & Gas, LLC |
729 |
| Aikins Drilling Company |
120 |
| Big Gully Oil, LLC |
793 |
| Brainstorm Energy, Inc. |
758 |
| Columbia Petroleum, LTD. |
1480 |
| Comanche Drilling Company |
1500 |
| Eagle Creek Colony |
138 |
| Eagle Oil & Gas Co. |
6 |
| Genesis St Operating LLC |
7642 |
| A. B. Energy LLC |
693 |
| Highlands Montana Corporation |
807 |
| Highline Exploration, Inc. |
342 |
| Chippewa Cree Tribe |
127 |
| Citation Oil & Gas Corp. |
105 |
| J.J. Bunkirt Oil & Gas Corp. |
341 |
| Alme, Henry A. |
611 |
| Alta Vista Oil Corporation |
804 |
| Behm Energy, Inc. |
632 |
| Butler Petroleum LLC |
816 |
| Bye, April & Scott |
264 |
| Chelin LLC |
767 |
| Cline Production Company |
1449 |
| Cut Bank Gas Company |
1770 |
| D & H Energy, LLC |
798 |
| D & M Welding LLC |
417 |
| D&A Water Disposal LLC |
825 |
| Decker Operating Company, L.L.C. |
233 |
| Delphi International Inc. |
1963 |
| Endeavor Energy Resources, LP |
311 |
| Gallup City Oil, LLC |
674 |
| Galuska Exploration & Production LLC |
403 |
| Galuska, George R. |
444 |
| H&R Energy, LLC |
441 |
| Hardrock Oil Company |
3220 |
| Homestake Oil & Gas Co. |
3540 |
| Hydra MT LLC |
824 |
| Lyon, John J. |
4430 |
| M & K Oil Company |
4496 |
| Macum Energy Inc. |
4550 |
| Manuel Corporation |
232 |
| Mbi Oil And Gas, LLC |
650 |
| Danielson, Patricia |
296 |
| Darrah Oil Company, LLC |
539 |
| McCullis Resources Co., Inc. |
4788 |
| McOil Montana One LLC |
427 |
| McPhillips, Beatrice E. |
4850 |
| McPhillips, Bernice |
12306 |
| MCR, LLC |
399 |
| McRae & Henry LTD |
4851 |
| Okie Crude Company |
769 |
| Parsell, R. W. |
5780 |
| Parsell, RF Partnership |
302 |
| Paugh, Gerald W. |
821 |
| Lamarsa Corp. |
651 |
| Miller, Frank I. |
5041 |
| Misc Oil Co |
5045 |
| Missouri River Royalty Corporation |
5050 |
| MLB, LLC |
429 |
| Pearson, Gabriel |
5825 |
| Montana Heartland LLC |
242 |
| Montana Land & Exploration, Inc. |
377 |
| Montana Land & Mineral Co. |
669 |
| Mountain Pacific General Inc. |
5265 |
| Mountain View Energy, Inc. |
344 |
| Nautilus Poplar LLC |
531 |
| Newfield Production Company |
536 |
| Quinque Oil, LLC |
598 |
| Nine Point Energy, LLC |
718 |
| Noah Energy, Inc. |
830 |
| Northwestern Corporation |
369 |
| Oasis Petroleum North America LLC |
533 |
| S & L Energy, Inc.C/O John D. Lawrence, JR. |
6640 |
| Saco, Town Of |
6660 |
| Jurassic Resources Development Na LLC |
216 |
| Omimex Canada, LTD. |
396 |
| Seymour, James & Lorraine |
334 |
| K2 America Corporation |
117 |
| Keesun Corporation |
2545 |
| Painted Pegasus Petroleum LLC Dba P3 Petroleum LLC |
808 |
| Pamect Oil, Keith E. Tyner Dba |
7941 |
| Petro-Hunt, LLC |
3680 |
| Soap Creek Associates, Inc. |
7040 |
| Solomon Exploration Inc. |
230 |
| Somont Oil Company, Inc. |
7120 |
| Stewart, Lynn |
7220 |
| Petroleum Engineering & Management Corp. |
6000 |
| Petrox Petroleum Company |
194 |
| Phoenix Energy, Inc. |
8041 |
| Pinnacle Energy Group, LLC |
367 |
| Pondera Partners Limited Partnership |
6177 |
| Potlatch Oil & Refining Co |
6180 |
| Powder Battalion Holdings LLC |
829 |
| Montalban Oil & Gas Operations, Inc. |
111 |
| Presco, Inc. |
468 |
| Pride Energy Company |
190 |
| R.C.S. Oil, Inc. |
418 |
| Ranch Oil Company, Inc. |
6320 |
| Ranck Oil Company, Inc. |
6340 |
| Tempel Contracting, Inc. |
659 |
| Remuda Energy Development, LLC |
585 |
| Reserve Operating Corp. |
6450 |
| Rim Operating, Inc. |
212 |
| Rimrock Colony |
131 |
| Rimrock Oil Company |
6520 |
| Rincon Oil & Gas LLC |
263 |
| Ritchie Exploration, Inc. |
116 |
| Ritter, Laber & Associates, Inc. |
6523 |
| Robert Hawkins, Inc. |
815 |
| King-Sherwood Oil |
4040 |
| Rock Creek Oil, Inc. |
822 |
| Roland Oil And Gas |
589 |
| Sage Creek Colony |
6662 |
| Wesco Operating, Inc. |
8205 |
| Knaup, Harry J. & Lucille |
84 |
| Kraken Operating, LLC |
727 |
| Kykuit Resources, LLC |
557 |
| Samson Oil And Gas USA, Inc. |
678 |
| Sands Oil Company |
6692 |
| Scout Energy Management LLC |
795 |
| Sdoco, LLC |
615 |
| Wind River Hydrocarbons, Inc. |
682 |
| Sinclair Oil & Gas Company |
6955 |
| Single Tree Disposal, Inc. |
203 |
| Slawson Exploration Company Inc |
6980 |
| Slohcin, Inc. |
5360 |
| Slow Poke Production-George L. Dobson Dba |
6985 |
| Smith, Loren E. And Foster, Chas. P. |
6982 |
| Sonkar, Inc. |
175 |
| Legacy Reserves Operating LP |
713 |
| Murex Petroleum Corp. |
314 |
| Equinor Energy LP |
483 |
| Equinor Pipelines LLC |
811 |
| Synergy Offshore LLC |
662 |
| T.W.O. (Taylor Well Operating) |
146 |
| Taqa North USA, Inc. |
814 |
| Taqa USA, Inc. |
599 |
| Thor Resources USA, LLC |
732 |
| Topaz Oil & Gas Inc |
7640 |
| True Oil LLC |
7840 |
| Tyler Oil Company |
196 |
| Tyler Rockies Exploration LTD |
101 |
| Unit Petroleum Company |
374 |
| United States Energy Corp. |
8025 |
| Longshot Oil, LLC |
590 |
| Unknown |
11773 |
| Ursa Major (Crow Og), LLC |
548 |
| Vanguard Operating, LLC |
525 |
| Vecta Oil & Gas, LTD. |
723 |
| Vess Oil Corporation |
684 |
| Walter S. Fees, JR. & Son Oil & Gas LLC |
819 |
| Interstate Explorations, LLC |
516 |
| Lowrance Company, The |
210 |
| White Rock Oil & Gas, LLC |
779 |
| Whiting Oil And Gas Corporation |
404 |
| Wigen, Christopher |
547 |
| Morken Production LLC |
792 |
| Mystique Resources Company |
653 |
| Northern Oil Production, Inc. |
5421 |
| Northern Producing LLC |
544 |
| Iofina Natural Gas, Inc. |
572 |
| Parmt LLC |
813 |
| Provident Energy Of Montana, LLC |
199 |
| R & A Oil, Inc. |
113 |
| Summit Gas Resources, Inc. |
676 |
| Three Forks Resources, LLC |
593 |
| Toi Operating |
278 |
| Tomahawk Oil Company, Inc. |
7620 |
| Weil Oil LLC |
748 |
| Western Natural Gas Company |
8300 |
| Woods, Pete Or Maxine |
8538 |
| Shadco |
6860 |
| Shakespeare Oil Co Inc |
6880 |
| Xoil Inc. |
8585 |
| XTO Energy Inc. |
580 |
| Yellowstone Petroleums, Inc. |
8620 |
| Young Sanders E&P, LLC |
778 |
| Enneberg Oil & Gas |
833 |
| Greylock Conventional, LLC |
831 |