| 2000-10-04 | 500402 | 42-197-31172 | MS BETTYE #1136TX | RIO PETROLEUM, INC. | RECOMP | 8,800 | |
| 2000-09-29 | 499808 | 42-197-31484 | CAGLE-PETTY UNIT #2 | TRIO OPERATING COMPANY, INC. | DRILL | 8,700 | |
| 2000-09-28 | 499964 | 42-197-31485 | MORGAN-NICHOLSON, JOHN H. #1 | CET ENERGY CORPORATION | DRILL | 8,200 | |
| 2000-09-19 | 498483 | 42-197-31480 | HAYNES #1 | BELCO ENERGY CORP. | DRILL | 9,000 | |
| 2000-09-12 | 498990 | 42-197-31483 | TABOR-JACKSON UNIT #2 | KADANE CORPORATION | DRILL | 8,500 | |
| 2000-08-25 | 498672 | 42-197-31482 | YOUNG UNIT #2 | KEY ENERGY OF COLORADO, INC. | DRILL | 9,000 | |
| 2000-08-23 | 498411 | 42-197-31350 | FISHER UNIT "140" #1ST | VAN OPERATING, LTD. | RECOMP | 8,700 | |
| 2000-08-21 | 498648 | 42-197-31481 | TABOR #1 | BELCO ENERGY CORP. | DRILL | 9,000 | |
| 2000-08-21 | 498648 | 42-197-31481 | TABOR #1 | BELCO ENERGY CORP. | DRILL | 9,000 | |
| 2000-08-18 | 498492 | 42-197-31479 | HURST #3 | KEY ENERGY OF COLORADO, INC. | DRILL | 8,500 | |
| 2000-08-14 | 498212 | 42-197-31478 | TABOR #2 | BELCO ENERGY CORP. | DRILL | 9,000 | |
| 2000-08-11 | 498213 | 42-197-31477 | HOLCOMB #2 | BELCO ENERGY CORP. | DRILL | 9,000 | |
| 2000-08-02 | 496776 | 42-197-31472 | SORENSON "A" #1A | FOREE OIL COMPANY | DRILL | 8,300 | |
| 2000-07-25 | 497410 | 42-197-31475 | TAYLOR #2 | BRIDGER OIL INC. | DRILL | 9,000 | |
| 2000-07-24 | 497492 | 42-197-31476 | HOWARD #1 | TRIO OPERATING COMPANY, INC. | DRILL | 8,500 | |
| 2000-07-18 | 497289 | 42-197-31474 | STEPP #1 | BELCO ENERGY CORP. | DRILL | 9,000 | |
| 2000-07-06 | 496912 | 42-197-31473 | HOLCOMB #1 | BELCO ENERGY CORP. | DRILL | 9,000 | |
| 2000-06-21 | 495907 | 42-197-31470 | MCNABB #4 | KEY ENERGY OF COLORADO, INC. | DRILL | 9,000 | |
| 2000-05-31 | 493789 | 42-197-31467 | WALSER-MORRIS UNIT #1 #1 | FOREE OIL COMPANY | DRILL | 8,200 | |
| 2000-05-25 | 495462 | 42-197-30859 | CATO #5 | DECLEVA, PAUL | RENTR | 8,262 | |
| 2000-05-18 | 495196 | 42-197-31469 | CHESSHIR UNIT #1 | CORDA CORPORATION | DRILL | 8,600 | |
| 2000-05-17 | 491951 | 42-197-31463 | DAVID-BERT UNIT #1 | KADANE CORPORATION | DRILL | 8,500 | |
| 2000-05-09 | 494312 | 42-197-31440 | MCCLELLAN-PHILLIPS #1 | ASHTOLA EXPLORATION COMPANY,INC. | RENTR | 8,200 | |
| 2000-05-09 | 494312 | 42-197-31440 | MCCLELLAN-PHILLIPS #1 | ASHTOLA EXPLORATION COMPANY,INC. | RENTR | 8,200 | |
| 2000-04-21 | 493586 | 42-197-31465 | HURST #2 | TRIO OPERATING COMPANY, INC. | DRILL | 8,800 | |
| 2000-04-12 | 494020 | 42-197-31468 | NEAL RANCH #1 | TRIO OPERATING COMPANY, INC. | DRILL | 8,200 | |
| 2000-03-31 | 493655 | 42-197-31466 | CATO #10 | DECLEVA, PAUL | DRILL | 8,100 | |
| 2000-03-31 | 493655 | 42-197-31466 | CATO #10 | DECLEVA, PAUL | DRILL | 8,100 | |
| 2000-02-23 | 492160 | 42-197-31281 | HOLMES #5 | KEY ENERGY OF COLORADO, INC. | RECOMP | 7,971 | |
| 2000-02-11 | 491806 | 42-197-31424 | C. E. TRUST #1 | CRAWFORD ENERGY, INCORPORATED | RECOMP | 7,400 | |
| 2000-01-24 | 491340 | 42-197-31437 | HURST #1 | TRIO OPERATING COMPANY, INC. | RECOMP | 8,700 | Y |
| 1999-12-09 | 490177 | 42-197-31462 | MINSHEW "A" UNIT #1 | TRIO OPERATING COMPANY, INC. | DRILL | 8,600 | |
| 1999-11-22 | 489593 | 42-197-31461 | PALAURA-HATCHER #2 | TRIO OPERATING COMPANY, INC. | DRILL | 9,000 | |
| 1999-10-29 | 488251 | 42-197-31458 | FORBES #4 | KADANE CORPORATION | DRILL | 8,500 | |
| 1999-10-25 | 488728 | 42-197-31459 | PALAURA-RAPP #2 | TRIO OPERATING COMPANY, INC. | DRILL | 8,400 | |
| 1999-10-22 | 488752 | 42-197-31460 | WEST ESTATE #3 | KEY ENERGY OF COLORADO, INC. | DRILL | 9,900 | |
| 1999-10-20 | 487218 | 42-197-31454 | GRANGE "B" #1 | ASHTOLA EXPLORATION COMPANY,INC. | DRILL | 8,500 | |
| 1999-10-14 | 487219 | 42-197-31455 | ST. GERMAINE #1 | ASHTOLA EXPLORATION COMPANY,INC. | DRILL | 8,500 | |
| 1999-10-14 | 487219 | 42-197-31455 | ST. GERMAINE UNIT #1 | ASHTOLA EXPLORATION COMPANY,INC. | DRILL | 8,500 | Y |
| 1999-10-07 | 487346 | 42-197-31444 | MEHARG UNIT #1ST | KEY ENERGY OF COLORADO, INC. | RECOMP | 8,300 | |
| 1999-09-30 | 488089 | 42-197-31457 | JACKSON #4 | KADANE CORPORATION | DRILL | 8,500 | |
| 1999-09-29 | 488062 | 42-197-31456 | BAUSTERT #1 | KEY ENERGY OF COLORADO, INC. | DRILL | 8,500 | |
| 1999-09-02 | 487194 | 42-197-31453 | R AND R #2 | CORDA CORPORATION | DRILL | 8,400 | |
| 1999-08-30 | 487113 | 42-197-31452 | WEST ESTATE UNIT #2 | KEY ENERGY OF COLORADO, INC. | DRILL | 9,000 | |
| 1999-07-07 | 485675 | 42-197-31451 | WORD A #2 | CORDA CORPORATION | DRILL | 8,400 | |
| 1999-06-29 | 485501 | 42-197-31450 | HOLCOMB #1 | RATLIFF OPERATING CORP. | DRILL | 9,000 | |
| 1999-06-01 | 484914 | 42-197-31449 | MCCLELLAN-PHILLIPS UNIT #2 | CORDA CORPORATION | DRILL | 8,050 | |
| 1999-06-01 | 484908 | 42-197-31448 | YOUNG #1 | KEY ENERGY OF COLORADO, INC. | DRILL | 8,500 | |
| 1999-06-01 | 484908 | 42-197-31448 | YOUNG #1 | KEY ENERGY OF COLORADO, INC. | DRILL | 8,500 | |
| 1999-01-22 | 482214 | 42-197-31447 | MINSHEW UNIT #1X | CORDA CORPORATION | DRILL | 8,600 | |