| 1991-06-26 | 389362 | 42-125-30452 | PITCHFORK-TOREADOR "B" #601 | SULLIVAN, HOLLIS R. INC. | DRILL | 4,400 | |
| 1991-06-17 | 388935 | 42-125-30451 | PITCHFORK RANCH #1 | WEST, GORDON T. JR. | DRILL | 4,500 | |
| 1991-06-05 | 388665 | 42-125-30450 | PITCHFORK "5" #5A | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1991-06-05 | 388437 | 42-125-30449 | FOSTER-POWELL "1" #1 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1991-05-30 | 388308 | 42-125-30448 | PITCHFORK L&CC "BB" #1 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1991-05-24 | 388311 | 42-125-30447 | PITCHFORK "5" #5 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1991-05-03 | 387368 | 42-125-30446 | PITCHFORK L&CC "Z" #6 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1991-05-03 | 387343 | 42-125-30445 | HOLMES, V. A. #3 | CLEAR FORK, INCORPORATED | DRILL | 4,550 | |
| 1991-04-30 | 387248 | 42-125-30444 | PITCHFORK-MATADOR "T" #11 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1991-04-18 | 386435 | 42-125-30443 | PITCHFORK L&CC "Z" #5 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1991-04-18 | 386435 | 42-125-30443 | PITCHFORK L&CC "Z" #5 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1991-04-16 | 386720 | 42-125-30442 | PITCHFORK LAND & CATTLE CO. #1 | SOJOURNER DRLG. CORP. | DRILL | 4,700 | |
| 1991-04-04 | 386395 | 42-125-30441 | PITCHFORK "5" #6 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1991-03-26 | 386127 | 42-125-30440 | BEGGS "11" #6 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1991-02-27 | 385118 | 42-125-30439 | PITCHFORK L&CC "Z" #4 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1991-02-22 | 384709 | 42-125-30438 | PITCHFORK-MATADOR "T" #10 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1991-02-01 | 383870 | 42-125-30436 | PITCHFORK-MATADOR "T" #9 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1991-01-29 | 383867 | 42-125-30437 | PITCHFORK "17" #1 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1991-01-04 | 382566 | 42-125-30362 | LANGFORD #1 | BOB & TED'S OPERATING | RENTR | 4,460 | |
| 1991-01-03 | 382957 | 42-125-30435 | BEGGS "7B" #1 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1991-01-03 | 382668 | 42-125-30434 | PITCHFORK "5" #4 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-12-19 | 382251 | 42-125-30433 | PITCHFORK L&CC "Z" #2 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1990-11-30 | 381536 | 42-125-30432 | WATSON FARMS INC. #1 | KLABZUBA OPERATING COMPANY | DRILL | 4,800 | |
| 1990-11-16 | 381199 | 42-125-30431 | FOSTER "1" #14A | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-11-05 | 380649 | 42-125-30430 | PITCHFORK "5" #3 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-10-29 | 380272 | 42-125-30429 | PITCHFORK L&CC "Z" #3 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1990-10-25 | 379800 | 42-125-30428 | HOLMES, V. A. #2 | CLEAR FORK, INCORPORATED | DRILL | 4,550 | |
| 1990-10-19 | 379838 | 42-125-30427 | FOSTER "1" #14 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-10-04 | 378752 | 42-125-30426 | PITCHFORK-MATADOR "T" #7 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1990-09-21 | 378318 | 42-125-30425 | PITCHFORK "8" #1 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-08-20 | 376778 | 42-125-30424 | FOSTER 1 #12 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-07-20 | 375763 | 42-125-30423 | FOSTER 1 #11 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-07-20 | 375763 | 42-125-30423 | FOSTER "1" #11 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-07-13 | 375486 | 42-125-30422 | PITCHFORK "5" #2 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-07-11 | 375329 | 42-125-30421 | PITCHFORK L&CC "Z" #1 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1990-07-11 | 375329 | 42-125-30421 | PITCHFORK L&CC "Z" #1 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1990-05-30 | 373932 | 42-125-30420 | EDWARDS W. #1 | TREND EXPLORATION COMPANY | DRILL | 4,600 | |
| 1990-05-21 | 373669 | 42-125-30419 | FOSTER 1 #9 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-05-10 | 373143 | 42-125-30418 | PITCHFORK-MATADOR "T" #6 | MEDDERS OIL COMPANY | DRILL | 4,250 | |
| 1990-05-08 | 373013 | 42-125-30417 | FOSTER 1 #10 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-04-05 | 371561 | 42-125-30416 | PITCHFORK LAND & CATTLE CO. Y #1 | MEDDERS OIL COMPANY | DRILL | 4,300 | |
| 1990-03-13 | 370861 | 42-125-30415 | BEGGS 236 #1 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-02-23 | 369945 | 42-125-30259 | STREIT #1 | LECLAIR OPERATING CO., INC. | RENTR | 4,900 | |
| 1990-01-24 | 368952 | 42-125-30414 | PITCHFORK "5" #1 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-01-23 | 368869 | 42-125-30412 | MCARTHUR, EDITH #2 | COX, JOHN L. | DRILL | 5,900 | |
| 1990-01-23 | 368649 | 42-125-30411 | FOSTER 1 #6 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-01-23 | 368648 | 42-125-30410 | FOSTER 1 #7 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-01-23 | 368646 | 42-125-30409 | FOSTER 1 #8 | SAUDER MANAGEMENT COMPANY | DRILL | 4,500 | |
| 1990-01-19 | 368888 | 42-125-30413 | PITCHFORK-MATADOR "T" #5 | MEDDERS OIL COMPANY | DRILL | 4,250 | |
| 1990-01-19 | 368888 | 42-125-30413 | PITCHFORK-MATADOR "T" #5 | MEDDERS OIL COMPANY | DRILL | 4,250 | |