| Raybon-Pressly Unit G-2-176045 | Allegro Investments, Inc. | Cordele (4850) | Jackson | 1 | 0 | 72.4K | Nov 1999 – Oct 2000 |
| Daniel Estate - HSL G-2-176048 | Allegro Investments, Inc. | McDaniel (3850) | Jackson | 1 | 0 | 0 | — |
| Mark Unit G-2-176049 | Allegro Investments, Inc. | Cordele (4300) | Jackson | 1 | 0 | 730K | Nov 1999 – Sep 2002 |
| David G-2-177887 | Allegro Investments, Inc. | Cordele (4850) | Jackson | 1 | 0 | 263K | Mar 2000 – Sep 2004 |
| Wilbeck G-2-183159 | Allegro Investments, Inc. | High Star (Frio) | Jackson | 1 | 0 | 238K | Nov 2000 – Jul 2001 |
| Sample G-2-183417 | Allegro Investments, Inc. | Cordele, East (5300) | Jackson | 1 | 0 | 237K | Mar 2001 – Jul 2005 |
| Cihal G-2-184513 | Allegro Investments, Inc. | Cordele (4500) | Jackson | 1 | 0 | 124K | Jun 2001 – Jun 2004 |
| Cathy G-2-187040 | Allegro Investments, Inc. | Dreyer (1500) | Goliad | 1 | 0 | 59.8K | May 2001 – Jul 2004 |
| Johnson Foundation G-2-187086 | Allegro Investments, Inc. | Cordele (Greta Fiew 5070) | Jackson | 1 | 0 | 175K | Aug 2001 – Sep 2003 |
| Sample G-2-187105 | Allegro Investments, Inc. | Cordele (4000) | Jackson | 1 | 0 | 141K | Oct 2001 – Aug 2003 |
| McCan, C. K. G-2-188889 | Allegro Investments, Inc. | Welder Ranch (2400) | Victoria | 1 | 0 | 7.08K | Dec 2001 – Feb 2002 |
| Kutchka G-2-188896 | Allegro Investments, Inc. | Witte (UF-137) | Victoria | 1 | 0 | 659K | Dec 2001 – Nov 2004 |
| Lakeside G-2-190838 | Allegro Investments, Inc. | El Toro, South (5600 F.B.E.) | Jackson | 1 | 0 | 17.2K | Feb 2002 – May 2002 |
| Cole G-2-191206 | Allegro Investments, Inc. | Kellers Creek, S. (Melbourne,lo) | Calhoun | 1 | 0 | 1.37K | Jul 2002 – Aug 2002 |
| Meek G-2-198623 | Allegro Investments, Inc. | Inez, S.W. (3800) | Victoria | 1 | 0 | 248K | Jul 2003 – Apr 2005 |
| Charbula G-2-203416 | Allegro Investments, Inc. | Witte (LF 5950) | Victoria | 1 | 0 | 12.5K | May 2004 – Jun 2004 |
| Fishcamp G-2-280097 | Allegro Investments, Inc. | El Toro, South (5600 F.B.E.) | Jackson | 1 | 0 | 23.5K | May 2015 – Mar 2016 |
| Brothers Cattle Co. Unit No. 1 G-3-154795 | Allegro Investments, Inc. | Trans-Tex (3800 Frio) | Wharton | 1 | 0 | 209K | Mar 1995 – Dec 1998 |
| Claire, Mary G-3-189801 | Allegro Investments, Inc. | Hungerford, North (Frio 4175) | Wharton | 1 | 0 | 153K | Apr 2002 – Feb 2005 |
| Hlavinka G-3-203430 | Allegro Investments, Inc. | Spanish Camp, South (3700) | Wharton | 1 | 0 | 90.3K | Jun 2004 – Feb 2006 |
| Hlavinka G-3-203431 | Allegro Investments, Inc. | Spanish Camp (Hungerford 2800) | Wharton | 1 | 0 | 226K | Jun 2004 – Sep 2006 |
| City of Corpus Christi G-4-126889 | Allegro Investments, Inc. | Lou Ella (4675) | San Patricio | 1 | 0 | 613 | by Jan 1993 – Jun 1993 |
| Burris-Oxford Unit 1 O-2-7715 | Allegro Investments, Inc. | Hysaw | Karnes | 1 | 0 | 0 | — |
| Cole O-2-8647 | Allegro Investments, Inc. | Kellers Creek, S (Melbourne UP) | Calhoun | 1 | 0 | 0 | — |
| Yendrey Fee O-2-8696 | Allegro Investments, Inc. | Big 12 (11,100) | Jackson | 1 | 0 | 0 | — |
| Elk Hills O-2-8815 | Allegro Investments, Inc. | Wildcat | Jackson | 1 | 0 | 0 | — |
| Coates O-2-8886 | Allegro Investments, Inc. | Wildcat | Jackson | 1 | 0 | 0 | — |
| Haynes O-8-30773 | Allegro Investments, Inc. | Wildcat | Haskell | 1 | 0 | 0 | — |
| Borchers Ranch - Bor G-2-170212 | Allegro Investments, Inc. | McDaniel (2800) | Jackson | 1 | 0 | 155K | Jul 1998 – Feb 2003 |
| Welder, J. F. Heirs G-2-76920 | Allegro Investments, Inc. | Greta (L- 5) | Refugio | 1 | 0 | 47.1K | by Jan 1993 – Feb 1995 |
| Oconnor, Dennis et Al G-2-83323 | Allegro Investments, Inc. | Telferner (1450) | Victoria | 1 | 0 | 0 | — |
| Welder, J. F. Heirs G-2-91862 | Allegro Investments, Inc. | Greta (700) | Refugio | 1 | 0 | 0 | — |
| Dorris Lipscomb Unit G-2-97128 | Allegro Investments, Inc. | Goliad, N. (2525) | Goliad | 1 | 0 | 4.12K | by Jan 1993 – Aug 1994 |
| Welder, J. F. Heirs G-2-109381 | Allegro Investments, Inc. | Greta (L- 5) | Refugio | 1 | 0 | 0 | — |
| McCan, C. K. G-2-117076 | Allegro Investments, Inc. | Welder Ranch (Frio F) | Victoria | 1 | 0 | 0 | — |
| Cartwright, Holman G-2-123267 | Allegro Investments, Inc. | Mount Lucas (1350) | Live Oak | 1 | 0 | 0 | — |
| McCan, C.K. G-2-125803 | Allegro Investments, Inc. | Gravel (Miocene 2200) | Victoria | 1 | 0 | 330 | Feb 1993 – Feb 1993 |
| Robinson G-2-134516 | Allegro Investments, Inc. | Robinson Ranch (Miocene 2300) | Jackson | 1 | 0 | 0 | — |
| McCan, C. K. G-2-142498 | Allegro Investments, Inc. | Gravel (Miocene 2200) | Victoria | 1 | 0 | 4.5K | Feb 1993 – May 1993 |
| Bammert G-2-143843 | Allegro Investments, Inc. | Goliad (Catahoula) | Goliad | 1 | 0 | 171K | by Jan 1993 – Oct 1995 |
| McCan, C.K. G-2-150563 | Allegro Investments, Inc. | Welder Ranch (1650) | Victoria | 1 | 0 | 0 | — |
| O'Connor, Dennis et Al G-2-150564 | Allegro Investments, Inc. | Telferner (1450) | Victoria | 1 | 0 | 63.2K | Aug 1994 – May 1996 |
| Welder, J. F. Heirs G-2-155043 | Allegro Investments, Inc. | Greta (L- 3) | Refugio | 1 | 0 | 48.8K | Apr 1995 – Apr 1997 |
| Schaefer-Buckner-HSL G-2-155160 | Allegro Investments, Inc. | McDaniel (3750) | Jackson | 1 | 0 | 378K | Jul 1995 – Sep 1999 |
| Robinson Ranch - Rob G-2-155603 | Allegro Investments, Inc. | McDaniel (4100) | Jackson | 1 | 0 | 164K | Aug 1995 – Feb 2000 |
| Robinson Ranch - Rob G-2-155785 | Allegro Investments, Inc. | McDaniel (4340) | Jackson | 1 | 0 | 223K | Sep 1995 – Feb 2000 |
| Robinson Ranch - Rob G-2-156768 | Allegro Investments, Inc. | McDaniel (4100) | Jackson | 1 | 0 | 51.5K | Dec 1995 – Aug 1998 |
| McCan, C. K. G-2-157122 | Allegro Investments, Inc. | Welder Ranch (3400) | Victoria | 1 | 0 | 8.2K | Dec 1995 – May 1996 |
| Robinson Ranch - Rob G-2-157126 | Allegro Investments, Inc. | McDaniel (3460) | Jackson | 1 | 0 | 311K | Jan 1996 – Nov 1999 |
| Ormand - Robinson Unit - Rob G-2-157129 | Allegro Investments, Inc. | McDaniel (4100) | Jackson | 1 | 0 | 736K | Jan 1996 – Feb 2002 |