| Webster Field Unit G-3-174203 | Exxon Corp. only | Webster | Harris | 1 | 14.8K | 379K | Aug 1999 – Nov 1999 |
| Webster Field Unit G-3-173825 | Exxon Mobil Corporation only | Webster | Harris | 1 | 6.45K | 1.21M | Jul 1999 – Mar 2001 |
| Webster Field Unit G-3-172624 | Exxon Mobil Corporation only | Webster | Harris | 1 | 5K | 592K | Mar 1999 – Nov 2000 |
| Webster Field Unit G-3-178416 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 4.44K | 696K | Jun 2000 – Jun 2001 |
| Webster Field Unit G-3-173245 | Denbury Onshore, LLC only | Webster | Harris | 1 | 4.11K | 16.2M | Apr 1999 – Feb 2001 |
| Webster Field Unit G-3-172623 | Denbury Onshore, LLC only | Webster | Harris | 1 | 2.34K | 5.47M | Mar 1999 – Jan 2001 |
| Webster Field Unit G-3-177533 | Exxon Mobil Corporation only | Webster | Harris | 1 | 1.68K | 5.56M | Apr 2000 – Jun 2001 |
| Webster Field Unit G-3-75456 | Exxon Mobil Corporation only | Webster | Harris | 1 | 1.11K | 413K | Mar 1999 – Sep 2000 |
| Webster Field Unit G-3-175643 | Denbury Onshore, LLC only | Webster | Harris | 1 | 1.1K | 3.58M | Dec 1999 – Dec 2001 |
| Webster Field Unit G-3-174648 | Denbury Onshore, LLC only | Webster | Harris | 1 | 860 | 2.35M | Sep 1999 – Jun 2001 |
| Webster Field Unit G-3-176026 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 684 | 1.03M | Dec 1999 – Jan 2002 |
| Webster Field Unit G-3-176314 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 656 | 7.29M | Jan 2000 – Mar 2001 |
| Webster Field Unit G-3-175641 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 598 | 2.69M | Dec 1999 – Feb 2001 |
| Webster Field Unit G-3-180186 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 580 | 352K | Oct 2000 – Apr 2002 |
| Webster Field Unit G-3-182097 | Exxon Mobil Corporation only | Webster | Harris | 1 | 383 | 171K | Mar 2001 – Jul 2012 |
| Webster Field Unit G-3-176676 | Exxon Mobil Corporation only | Webster | Harris | 1 | 371 | 866K | Feb 2000 – Sep 2001 |
| Webster Field Unit G-3-177183 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 344 | 3.38M | Mar 2000 – Dec 2000 |
| Webster Field Unit G-3-172631 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 195 | 4.08M | Mar 1999 – Feb 2001 |
| Webster Field Unit G-3-174202 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 189 | 12.3M | Aug 1999 – Feb 2001 |
| Webster Field Unit G-3-180723 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 186 | 307K | Dec 2000 – Aug 2001 |
| Webster Field Unit G-3-178418 | Denbury Onshore, LLC only | Webster | Harris | 1 | 166 | 2.86M | Jun 2000 – Aug 2001 |
| Webster Field Unit G-3-172622 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 138 | 188K | Mar 1999 – Sep 1999 |
| Webster Field Unit G-3-177630 | Exxon Mobil Corporation only | Webster | Harris | 1 | 82 | 344K | May 2000 – Jan 2001 |
| Webster Field Unit G-3-176027 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 82 | 5.82M | Jan 2000 – May 2001 |
| Webster Field Unit G-3-179196 | Denbury Onshore, LLC only | Webster | Harris | 1 | 73 | 3.5M | Aug 2000 – Mar 2002 |
| Webster Field Unit G-3-179926 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 71 | 1.38M | Sep 2000 – Mar 2002 |
| Webster Field Unit G-3-182412 | Denbury Onshore, LLC only | Webster | Harris | 1 | 51 | 148K | Apr 2001 – Jun 2001 |
| Webster Field Unit G-3-189323 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 49 | 67.1K | Apr 2002 – Aug 2002 |
| Webster Field Unit G-3-180724 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 45 | 1.23M | Dec 2000 – Apr 2001 |
| Webster Field Unit G-3-184014 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 32 | 1.12K | Jun 2001 – Jul 2001 |
| Webster Field Unit G-3-178239 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 31 | 93.6K | Jun 2000 – Aug 2000 |
| Webster Field Unit "A" G-3-168615 | Exxon Corp. only | Webster (Chgd Shallow) | Harris | 1 | 7 | 130K | Jun 1997 – Nov 1999 |
| Webster Field Unit G-3-174647 | Exxon Mobil Corporation only | Webster | Harris | 1 | 5 | 9.04M | Sep 1999 – Feb 2001 |
| Webster Field Unit G-3-86940 | Exxon Corp. only | Webster | Harris | 1 | 0 | 0 | — |
| Webster Field Unit G-3-87848 | Exxon Corp. only | Webster | Harris | 1 | 0 | 27.2K | Nov 1993 – Aug 1994 |
| Webster Field Unit G-3-85537 | Exxon Corp. only | Webster | Harris | 1 | 0 | 0 | — |
| Webster Field Unit G-3-177141 | Exxon Mobil Corporation only | Webster | Harris | 1 | 0 | 846K | Mar 2000 – Jun 2000 |
| Webster Field Unit G-3-178419 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 0 | 709K | Aug 2000 – Mar 2001 |
| Webster Field Unit G-3-99642 | Exxon Corp. only | Webster | Harris | 1 | 0 | 0 | — |
| Webster Field Unit G-3-176674 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 0 | 1.26M | Feb 2000 – Dec 2000 |
| Webster Field Unit G-3-81000 | Exxon Corp. only | Webster | Harris | 1 | 0 | 0 | — |
| Webster Field Unit G-3-180272 | Denbury Onshore, LLC only | Webster | Harris | 1 | 0 | 7.07M | Nov 2000 – Apr 2001 |
| Webster Field Unit G-3-172060 | Exxon Mobil Corporation only | Webster | Harris | 1 | 0 | 9.2M | Feb 1999 – Jan 2001 |
| Webster Field Unit G-3-175129 | Denbury Onshore, LLC only | Webster | Harris | 1 | 0 | 11.8M | Nov 1999 – Aug 2001 |
| Webster Field Unit G-3-80998 | Exxon Corp. only | Webster | Harris | 1 | 0 | 0 | — |
| Webster Field Unit G-3-174999 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 0 | 13.9M | Oct 1999 – Aug 2000 |
| Webster Field Unit G-3-174650 | Denbury Onshore, LLC only | Webster | Harris | 1 | 0 | 4.66M | Oct 1999 – Jun 2001 |
| Webster Field Unit G-3-174649 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 0 | 5.91M | Sep 1999 – Nov 2000 |
| Webster Field Unit G-3-277247 | P.o.&g. Operating, LLC only | Webster | Harris | 1 | 0 | 0 | — |