| 450435 | Aug 9, 1996 | Aug 9, 1996 | Columbia Gas Development Corp. | Matagorda | Batchelder et Al #1 | 9,999 | 32131632 |
| 446665 | Apr 4, 1996 | Apr 4, 1996 | Columbia Gas Development Corp. | Burleson | Filippone, Marion J. #4HH | 8,100 | 05131237 |
| 445040 | Feb 21, 1996 | Feb 21, 1996 | Columbia Gas Development Corp. | Burleson | Sebesta-Roberts Unit #1HH | 9,500 | 05133059 |
| 444346 | Feb 1, 1996 | Feb 1, 1996 | Columbia Gas Development Corp. | Dimmit | Little 179 #1HH | 7,000 | 12732836 |
| 443769 | Jan 17, 1996 | Jan 17, 1996 | Columbia Gas Development Corp. | Burleson | Smith, R. J. #1H | 7,700 | 05130557 |
| 443564 | Jan 10, 1996 | Jan 10, 1996 | Columbia Gas Development Corp. | Burleson | Supak, Mary #1H | 8,300 | 05132919 |
| 443389 | Jan 3, 1996 | Jan 3, 1996 | Columbia Gas Development Corp. | Burleson | Rubach, L. P. #1HH | 9,700 | 05131648 |
| 442587 | Dec 7, 1995 | Dec 7, 1995 | Columbia Gas Development Corp. | Fayette | Colossians #1HH | 9,000 | 14931856 |
| 442286 | Nov 28, 1995 | Nov 28, 1995 | Columbia Gas Development Corp. | Burleson | Luksa - Kubena #1 Unit #1H | 7,900 | 05133145 |
| 442032 | Nov 17, 1995 | Nov 17, 1995 | Columbia Gas Development Corp. | Dimmit | Dimmit Woods #1AH | 7,200 | 12733021 |
| 439339 | Oct 26, 1995 | Oct 26, 1995 | Columbia Gas Development Corp. | Burleson | Joy #1HH | 9,300 | 05130829 |
| 440412 | Oct 2, 1995 | Oct 2, 1995 | Columbia Gas Development Corp. | Burleson | Hyvl, Bohus et Al #2HH | 7,550 | 05133219 |
| 439401 | Aug 29, 1995 | Aug 29, 1995 | Columbia Gas Development Corp. | Zavala | Little 162 #1HH | 6,900 | 50732279 |
| 437758 | Aug 8, 1995 | Aug 8, 1995 | Columbia Gas Development Corp. | Burleson | Raymond Zgabay #1 Unit #1H | 8,100 | 05130483 |
| 437086 | Jun 21, 1995 | Jun 21, 1995 | Columbia Gas Development Corp. | Burleson | Edwin Zgabay "a" #1 Unit #1H | 8,500 | 05130682 |
| 436822 | Jun 15, 1995 | Jun 15, 1995 | Columbia Gas Development Corp. | Burleson | Helwig/Gerdes #1HH | 8,000 | 05133113 |
| 436454 | Jun 6, 1995 | Jun 6, 1995 | Columbia Gas Development Corp. | Burleson | Mikeska/Krenek Unit #1H | 7,800 | 05133191 |
| 436127 | May 24, 1995 | May 24, 1995 | Columbia Gas Development Corp. | Zavala | Pickens Ranch #5 | 5,500 | 50732515 |
| 433234 | Feb 24, 1995 | Feb 24, 1995 | Columbia Gas Development Corp. | Zavala | Pickens Ranch #4HH | 6,500 | 50732509 |
| 433234Amendment | Feb 24, 1995 | Feb 24, 1995 | Columbia Gas Development Corp. | Zavala | Pickens Ranch #4HH | 6,500 | 50732509 |
| 433038 | Feb 21, 1995 | Feb 21, 1995 | Columbia Gas Development Corp. | Cherokee | Opal #1 | 10,500 | 07330849 |
| 430397 | Nov 30, 1994 | Nov 30, 1994 | Columbia Gas Development Corp. | Tyler | Arco Fee LJ #3 | 8,000 | 45730492 |
| 428648 | Oct 5, 1994 | Oct 5, 1994 | Columbia Gas Development Corp. | Lee | Minerva #1HH | 7,800 | 28730493 |
| 426086 | Jul 21, 1994 | Jul 21, 1994 | Columbia Gas Development Corp. | Lee | Storm #1 HH | 8,500 | 28730920 |
| 425987 | Jul 19, 1994 | Jul 19, 1994 | Columbia Gas Development Corp. | Tyler | Arco Fee LJ #2 | 8,000 | 45730485 |
| 425692 | Jul 12, 1994 | Jul 12, 1994 | Columbia Gas Development Corp. | Victoria | Gillar #1 | 7,300 | 46933047 |
| 425021 | Jun 22, 1994 | Jun 22, 1994 | Columbia Gas Development Corp. | Colorado | Columbus State Bank-Sealy #1 | 12,500 | 08931904 |
| 424427 | Jun 8, 1994 | Jun 8, 1994 | Columbia Gas Development Corp. | Terry | Oliver #8801 | 12,000 | 44531702 |
| 424052 | May 19, 1994 | May 19, 1994 | Columbia Gas Development Corp. | Burleson | Darrell Chmelar et Al #1RH | 7,825 | 05133195 |
| 422941 | Apr 14, 1994 | Apr 14, 1994 | Columbia Gas Development Corp. | Brazoria | I.P. Farms et Al #1 | 9,700 | 03932521 |
| 421942 | Apr 13, 1994 | Apr 13, 1994 | Columbia Gas Development Corp. | Brazos | Treatment Plant #1H | 9,400 | 04131809 |
| 422149 | Mar 18, 1994 | Mar 18, 1994 | Columbia Gas Development Corp. | Duval | State - Allen/Rowden #1 | 13,500 | 13137927 |
| 421581 | Mar 8, 1994 | Mar 8, 1994 | Columbia Gas Development Corp. | Fayette | Snell, Gayle #1H | 10,100 | 14932867 |
| 421580 | Mar 2, 1994 | Mar 2, 1994 | Columbia Gas Development Corp. | Burleson | Supak, Bennie "B" #1 HH | 8,200 | 05132683 |
| 420683 | Feb 2, 1994 | Feb 2, 1994 | Columbia Gas Development Corp. | Burleson | Columbus Professional Buildings #2HH | 8,300 | 05131045 |
| 420184 | Jan 14, 1994 | Jan 14, 1994 | Columbia Gas Development Corp. | Burleson | Filippone, Marion J. #8HH | 7,900 | 05133194 |
| 420008 | Jan 10, 1994 | Jan 10, 1994 | Columbia Gas Development Corp. | Fayette | Keilers Co. Inc. #1H | 10,625 | 14932847 |
| 420007 | Jan 10, 1994 | Jan 10, 1994 | Columbia Gas Development Corp. | Burleson | Parker #1HH | 8,200 | 05130668 |
| 417911 | Nov 15, 1993 | Nov 15, 1993 | Columbia Gas Development Corp. | Burleson | Wendland, Daniel et Al #1 HH | 8,175 | 05131148 |
| 417419 | Oct 25, 1993 | Oct 25, 1993 | Columbia Gas Development Corp. | Burleson | Tyson, Scott et Al #2HH | 8,300 | 05130596 |
| 416856 | Oct 8, 1993 | Oct 8, 1993 | Columbia Gas Development Corp. | Tyler | Arco Fee LJ #1 | 8,700 | 45730471 |
| 416740 | Oct 7, 1993 | Oct 7, 1993 | Columbia Gas Development Corp. | Burleson | Bird, Shirley et Al #2 HH | 8,350 | 05131074 |
| 415575 | Sep 3, 1993 | Sep 3, 1993 | Columbia Gas Development Corp. | Burleson | Filippone, Marion J. #4 HH | 8,100 | 05131237 |
| 414703 | Aug 10, 1993 | Aug 10, 1993 | Columbia Gas Development Corp. | Jasper | Arco Fee #2 | 9,225 | 24130530 |
| 413212 | Jun 29, 1993 | Jun 29, 1993 | Columbia Gas Development Corp. | Jasper | Arco Fee #4 | 10,200 | 24130543 |
| 413211 | Jun 29, 1993 | Jun 29, 1993 | Columbia Gas Development Corp. | Jasper | Arco Fee #3 | 10,200 | 24130544 |
| 413211Amendment | Jun 29, 1993 | Jun 29, 1993 | Columbia Gas Development Corp. | Jasper | Arco Fee #3 | 9,200 | 24130544 |
| 412896 | Jun 17, 1993 | Jun 17, 1993 | Columbia Gas Development Corp. | Jasper | Walters, James R. et Al #1 | 8,500 | 24130541 |
| 412346 | Jun 9, 1993 | Jun 9, 1993 | Columbia Gas Development Corp. | Zavala | Pickens Ranch #1 HH | 7,000 | 50732455 |
| 410926 | Apr 27, 1993 | Apr 27, 1993 | Columbia Gas Development Corp. | Frio | Carnes Ranch #2H | 7,300 | 16333155 |
| 410152 | Mar 25, 1993 | Mar 25, 1993 | Columbia Gas Development Corp. | Guadalupe | Dix #1H | 2,500 | 18733414 |
| 409930 | Mar 17, 1993 | Mar 17, 1993 | Columbia Gas Development Corp. | Frio | Carnes Ranch #1H | 7,300 | 16333152 |
| 409400 | Mar 3, 1993 | Mar 3, 1993 | Columbia Gas Development Corp. | Jasper | Arco Fee #2 | 10,200 | 24130530 |
| 409400Amendment | Mar 3, 1993 | Mar 3, 1993 | Columbia Gas Development Corp. | Jasper | Arco Fee #2 | 10,200 | 24130530 |
| 409400Amendment | Mar 3, 1993 | Mar 3, 1993 | Columbia Gas Development Corp. | Jasper | Arco Fee #2 | 10,200 | 24130530 |
| 409054 | Mar 1, 1993 | Mar 1, 1993 | Columbia Gas Development Corp. | Zavala | Pickens Ranch #2H | 7,000 | 50732472 |
| 409253 | Feb 23, 1993 | Feb 23, 1993 | Columbia Gas Development Corp. | Guadalupe | Mondin #1H | 2,500 | 18733409 |
| 409253Amendment | Feb 23, 1993 | Feb 23, 1993 | Columbia Gas Development Corp. | Guadalupe | Mondin #1H | 2,500 | 18733409 |
| 409155 | Feb 22, 1993 | Feb 22, 1993 | Columbia Gas Development Corp. | Zavala | Pickens Ranch #3H | 7,000 | 50732471 |
| 406899 | Dec 7, 1992 | Dec 7, 1992 | Columbia Gas Development Corp. | Guadalupe | Gesick-Doerfler #1H | 2,100 | 18733402 |
| 406899Amendment | Dec 7, 1992 | Dec 7, 1992 | Columbia Gas Development Corp. | Guadalupe | Gesick-Doerfler #1H | 2,200 | 18733402 |
| 406425 | Nov 24, 1992 | Nov 24, 1992 | Columbia Gas Development Corp. | Guadalupe | Blumberg-Taylor #1H | 2,100 | 18733400 |
| 406251 | Nov 24, 1992 | Nov 24, 1992 | Columbia Gas Development Corp. | Burleson | Sebesta, Robert T. #2 HH | 8,600 | 05133005 |
| 406113 | Nov 18, 1992 | Nov 18, 1992 | Columbia Gas Development Corp. | Lee | Baker-Markert #1H | 8,000 | 28732362 |
| 404073 | Oct 27, 1992 | Oct 27, 1992 | Columbia Gas Development Corp. | Brazoria | Smith, Jesse L. #1 | 11,600 | 03932476 |
| 404715 | Oct 22, 1992 | Oct 22, 1992 | Columbia Gas Development Corp. | Jasper | Arco Fee #1 | 10,800 | 24130519 |
| 403437 | Sep 17, 1992 | Sep 17, 1992 | Columbia Gas Development Corp. | Anderson | Davey-Royall #1 | 6,000 | 00132167 |
| 401511 | Jul 23, 1992 | Jul 23, 1992 | Columbia Gas Development Corp. | Anderson | Temple-Inland #2 | 6,300 | 00132119 |
| 401472 | Jul 22, 1992 | Jul 22, 1992 | Columbia Gas Development Corp. | Anderson | Sawyer, Eula P. #1 | 6,500 | 00132118 |
| 400994 | Jul 14, 1992 | Jul 14, 1992 | Columbia Gas Development Corp. | Zavala | Pickens Ranch #1HH | 7,000 | 50732455 |
| 400871 | Jul 13, 1992 | Jul 13, 1992 | Columbia Gas Development Corp. | Brazoria | Weaver, M. M. #1 | 10,200 | 03932467 |
| 398408 | Apr 17, 1992 | Apr 17, 1992 | Columbia Gas Development Corp. | Anderson | Davenport, Henry S. Jr. #1 | 6,000 | 00132103 |
| 398408Amendment | Apr 17, 1992 | Apr 17, 1992 | Columbia Gas Development Corp. | Anderson | Temple-Inland #A 1 | 6,000 | 00132103 |
| 398018 | Apr 6, 1992 | Apr 6, 1992 | Columbia Gas Development Corp. | Lavaca | Schilhab #3 | 7,500 | 28532138 |
| 396829 | Mar 5, 1992 | Mar 5, 1992 | Columbia Gas Development Corp. | Frio | Shiner, Ida B. #B4H | 7,400 | 16333125 |
| 394404 | Dec 2, 1991 | Dec 2, 1991 | Columbia Gas Development Corp. | Garza | Rodgers Ranch #1 | 9,500 | 16933081 |
| 393757 | Nov 20, 1991 | Nov 20, 1991 | Columbia Gas Development Corp. | Anderson | Temple-Inland #1 | 6,000 | 00132072 |
| 393183 | Oct 25, 1991 | Oct 25, 1991 | Columbia Gas Development Corp. | Wilson | Ezzell-Hall #1H | 11,200 | 49332318 |
| 393183Amendment | Oct 25, 1991 | Oct 25, 1991 | Columbia Gas Development Corp. | Wilson | Ezzell-Hall #1H | 11,200 | 49332318 |
| 390433 | Aug 2, 1991 | Aug 2, 1991 | Columbia Gas Development Corp. | Wilson | Hassell #1HH | 9,900 | 49332303 |
| 389734 | Jul 15, 1991 | Jul 15, 1991 | Columbia Gas Development Corp. | Lavaca | Schilhab #2 | 7,500 | 28532117 |
| 389734Amendment | Jul 15, 1991 | Jul 15, 1991 | Columbia Gas Development Corp. | Lavaca | Schilhab, C. W. et Al #2 | 7,600 | 28532117 |
| 387801 | Jun 6, 1991 | Jun 6, 1991 | Columbia Gas Development Corp. | Navarro | Reynolds Drlg Co.-Warren #1 | 11,300 | 34934411 |
| 386547 | May 2, 1991 | May 2, 1991 | Columbia Gas Development Corp. | Burleson | Bohus Hyvl #2 #2H | 9,900 | 05133219 |
| 385088 | Apr 25, 1991 | Apr 25, 1991 | Columbia Gas Development Corp. | Matagorda | Kelly, D. R. #1 #1 | 11,500 | 32131650 |
| 384582 | Mar 12, 1991 | Mar 12, 1991 | Columbia Gas Development Corp. | Burleson | Kucera, Alvin #1HH | 9,200 | 05131938 |
| 385276 | Mar 7, 1991 | Mar 7, 1991 | Columbia Gas Development Corp. | Live Oak | T. B. Justice Est. #1 | 13,800 | 29733980 |
| 384129 | Feb 4, 1991 | Feb 4, 1991 | Columbia Gas Development Corp. | Burleson | Chmelar et Al #1H | 9,000 | 05133195 |
| 384128 | Feb 4, 1991 | Feb 4, 1991 | Columbia Gas Development Corp. | Burleson | Filipone #8H | 9,300 | 05133194 |
| 381958 | Dec 12, 1990 | Dec 12, 1990 | Columbia Gas Development Corp. | Gaines | Morrison #1 | 12,000 | 16534121 |
| 380257 | Nov 2, 1990 | Nov 2, 1990 | Columbia Gas Development Corp. | Lavaca | Schilhab #1 | 7,050 | 28532089 |
| 380026 | Oct 26, 1990 | Oct 26, 1990 | Columbia Gas Development Corp. | Duval | Lincoln Natl Bank, et Al #1 | 15,000 | 13137418 |
| 376627 | Aug 21, 1990 | Aug 21, 1990 | Columbia Gas Development Corp. | Matagorda | Batchelder et Al #1 | 14,500 | 32131632 |
| 376715 | Aug 20, 1990 | Aug 20, 1990 | Columbia Gas Development Corp. | Yoakum | Cleveland #16432C | 12,000 | 50133594 |
| 375527 | Jul 17, 1990 | Jul 17, 1990 | Columbia Gas Development Corp. | Jackson | Drushel, William H. Jr. #1 | 9,000 | 23932551 |
| 371801 | Apr 12, 1990 | Apr 12, 1990 | Columbia Gas Development Corp. | Grimes | Union Fee #1 | 14,500 | 18530423 |
| 371199 | Mar 22, 1990 | Mar 22, 1990 | Columbia Gas Development Corp. | Lee | McHenry #2 | 8,700 | 28732275 |
| 368815 | Jan 19, 1990 | Jan 19, 1990 | Columbia Gas Development Corp. | Harrison | Ware, W. T. #1 | 7,500 | 20331876 |
| 367650 | Dec 15, 1989 | Dec 15, 1989 | Columbia Gas Development Corp. | Lee | McHenry #1 | 10,500 | 28732268 |
| 366989 | Nov 29, 1989 | Nov 29, 1989 | Columbia Gas Development Corp. | Gaines | Morrison #1 | 13,500 | 16534121 |