FIELDS · 99880380 · DISTRICT 04
Zone 21-B Trend
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.
Exxon Mobil Corp holds the most, 35 leases and 0 barrels lifetime.
Lifetime, the field has reported 0 barrels of oil and 50 million mcf of gas.
- 156
- leases on file
- 25
- operators, all time
- 0
- bbl oil, last 12 reported
- 1.23M
- mcf gas, last 12 reported -20%
- 11
- leases reporting volume
- 0
- bbl oil, lifetime · 49.7M mcf
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Gas by month
TEN YEARS · EVERY LEASE IN THE FIELD
Gas-well gas plus casinghead, mcf, across the field's leases. The latest months are revised upward as late reports arrive.
Last 12 months 1,227,165 · prior 12 1,527,471(-20%)
Leases reporting volume
How many of the field's leases reported any oil or gas each month: the field's active footprint.
Latest month 11 · a year earlier 7(+57%)
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 15
| Operator | Leases | Oil, bbl | Gas, mcf | Last reported |
|---|---|---|---|---|
| Exxon Mobil Corp | 35 | 0 | 5.85M | Feb 2022 |
| Youngblood, C. S. III | 30 | 0 | 2.04K | Nov 1999 |
| EOG Res, Inc | 27 | 0 | 23.1M | Jul 2026 |
| Logas Engy, LLC | 17 | 0 | 18.7M | Jul 2026 |
| Remora Oper, LLC | 11 | 0 | 203K | Jul 2026 |
| Parkway Petro, Inc | 11 | 0 | 1.25K | Jun 2012 |
| Superior Oil Co, The | 7 | 0 | 847K | Jul 2010 |
| Jetta Oper Co, Inc | 4 | 0 | 0 | Feb 2019 |
| Sue-Ann Oper, L.C | 4 | 0 | 83.3K | Jul 2026 |
| Freedom Engy, Inc. (I) | 3 | 0 | 0 | Jan 2001 |
| Axio Prod Co, L.P | 2 | 0 | 736K | Jun 2005 |
| Triad Engy Corp | 2 | 0 | 0 | Dec 2003 |
| Hilcorp Engy Co | 1 | 0 | 0 | Sep 2015 |
| Forest Oil Corp | 1 | 0 | 195K | Jun 2011 |
| Low-End Oil LLC | 1 | 0 | 10.4K | Jun 2019 |
Counties
- Kleberg County → 42 leases
- Jim Wells County → 19 leases
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 nightly from every lease report naming the field, cut at the statewide reported-through month. Counties from the wells completed on each lease.
New to these records? how production is reported
Developers: this page as JSON is GET /v1/data/fields/tx/99880380, documented in the API reference.