FIELDS · 49413200 · DISTRICT 7C
King Mountain (Devonian)
Upton 6
King Mountain (Devonian) is an RRC field with 8 leases on file reported by 27 operators, in Upton County.
In the 12 months reported through April 2026 it produced 173,016 mcf of gas, down 9% on the year before, from 3 leases reporting volume.
Winn Oper, LLC holds the most, 1 leases and 367,751 barrels lifetime.
Lifetime, the field has reported 481,546 barrels of oil and 9.5 million mcf of gas, across 7 oil and 1 gas leases.
- 8
- leases on file · 7 oil, 1 gas
- 27
- operators, all time
- 8.64K
- bbl oil, last 12 reported -2%
- 173K
- mcf gas, last 12 reported -9%
- 3
- leases reporting volume
- 482K
- bbl oil, lifetime · 9.52M 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 173,016 · prior 12 190,611(-9%)
Oil by month
TEN YEARS · EVERY LEASE IN THE FIELD
Barrels reported on Form PR across the field's leases. The latest months are revised upward as late reports arrive.
Last 12 months 8,636 · prior 12 8,810(-2%)
Leases reporting volume
How many of the field's leases reported any oil or gas each month: the field's active footprint.
Latest month 3 · a year earlier 3(+0%)
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 7
| Operator | Leases | Oil, bbl | Gas, mcf | Last reported |
|---|---|---|---|---|
| Winn Oper, LLC | 1 | 368K | 6.76M | Jul 2026 |
| Petx Oper LLC | 2 | 100K | 1.71M | Jul 2026 |
| XTO Engy Inc | 1 | 4.29K | 79.6K | Jul 2026 |
| Maynard Oil Co | 1 | 3.8K | 16K | Nov 1999 |
| Costilla Petro Corp | 1 | 3.17K | 195K | Sep 1996 |
| Eagle Rock Oper Co,llc | 1 | 2.55K | 86.3K | May 2010 |
| XOG Oper LLC | 1 | 0 | 676K | Jul 2026 |
Counties
- Upton County → 6 leases
About this data
Field 49413200 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/49413200, documented in the API reference.