FIELDS · TEXAS · FIELD 99880380
Zone 21-B Trend
Field · District 04 · Kleberg County and 1 more
Zone 21-B Trend is an RRC field with 156 leases on file reported by 25 operators, mostly in Kleberg County.
In the 12 months reported through April 2026 it produced 1.2 million mcf of gas, down 20% on the year before, from 11 leases reporting volume.
Logas Energy, LLC holds the most, 17 leases and 19 million mcf of gas lifetime.
Lifetime, the field has reported 139,341 barrels of oil and 50 million mcf of gas.
- 156
- leases on file
- 11
- leases reporting volume
- 25
- operators, all time
- 15
- active wellbores of 255 · 3 operators today
- 18,172
- bbl oil, 12 months through Apr 2026 · −21%
- 1.2M
- Mcf gas, same 12 months · −20%
- 139,341
- bbl oil, lifetime · 49.7M Mcf gas
Every well completed in it, searchable →
Reported production by month
12 months through Apr 2026 18,172 · prior 12 22,875(-21%)
Zone 21-B Trend: Oil by month.
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 15
| Operator | Leases | Oil, bbl | Gas, Mcf | Last reported |
|---|---|---|---|---|
| Logas Energy, LLC | 17 | 110K | 18.7M | Apr 2026 |
| EOG Resources, Inc. | 27 | 27.4K | 23.1M | Apr 2026 |
| Remora Operating, LLC | 11 | 1.1K | 203K | Apr 2026 |
| Axio Production Company, L.P. | 2 | 710 | 736K | Feb 2003 |
| Exxon Mobil Corporation | 35 | 370 | 5.85M | Dec 2012 |
| Mobil Producing TX. & N.M. Inc. | 7 | 1 | 847K | Aug 2001 |
| Exxon Corp. | 30 | 0 | 2.04K | Nov 1999 |
| Chesapeake Operating, Inc. | 11 | 0 | 1.25K | Dec 2004 |
| Sue-Ann Operating, L.C. | 4 | 0 | 83.3K | Jul 2002 |
| Jetta Operating Company, Inc. | 4 | 0 | 0 | — |
| Freedom Energy, Inc. (I) | 3 | 0 | 0 | — |
| Triad Energy Corporation | 2 | 0 | 0 | — |
| Low-End Oil LLC | 1 | 0 | 10.4K | Jan 2003 |
| Hilcorp Energy Company | 1 | 0 | 0 | — |
| Forest Oil Corporation | 1 | 0 | 195K | Mar 1997 |
Counties
- Kleberg County → 97 leases
- Jim Wells County → 58 leases
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Seeligson Zone 21-B Unit #1132 | Logas Energy LLC | Kleberg | Apr 4, 2022 | — | — | — |
| Seeligson Zone 21-B Unit #1157 | Logas Energy LLC | Kleberg | Apr 1, 2022 | — | — | — |
| Canales A. T. #5 | Remora Operating LLC | Jim Wells | Dec 11, 2016 | — | — | — |
| Seeligson Zone 21-C Unit #1PF | Exxon Mobil Corporation | Kleberg | Aug 10, 2015 | — | — | — |
| King Ranch Borregos #435 D | EOG Resources Inc. | Kleberg | Apr 18, 2013 | — | — | — |
| Seelingson Zone 21 B Unit #C191 C | Exxon Mobil Corporation | Kleberg | Oct 1, 2004 | — | — | — |
| Seeligson Unit #0146B | Sue-Ann Operating L.C. | Jim Wells | Mar 30, 2004 | — | — | — |
| King Ranch Borregos #640 | Exxon Mobil Corporation | Kleberg | Dec 4, 2003 | — | — | — |
| King Ranch Borregos #608 | EOG Resources Inc. | Kleberg | Jan 16, 2003 | — | — | — |
| King Ranch Borregos #611 D | Exxon Mobil Corporation | Kleberg | Aug 16, 2000 | — | — | — |
About this data
Field 99880380 from RRC PDQ lease reports: lifetime totals and lease and operator counts from the field summary; the monthly series summed from every lease report naming the field, cut at the statewide reported-through month, Apr 2026. Oil includes condensate from gas leases and gas includes casinghead gas from oil leases, as the RRC totals them. Counties from the wells completed on each lease. Completions are the wellbores the RRC schedule ties to the field. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/fields/tx/99880380, documented in the API reference.