FIELDS · 55050666 · DISTRICT 09
Lost Valley (Marble Falls)
Jack 18
Lost Valley (Marble Falls) is an RRC field with 20 leases on file reported by 17 operators, in Jack County.
In the 12 months reported through April 2026 it produced 40,096 mcf of gas, up 3% on the year before, from 5 leases reporting volume.
Paratus Petroleum LLC holds the most, 4 leases and 86,596 barrels lifetime.
Lifetime, the field has reported 149,804 barrels of oil and 2.7 million mcf of gas, across 15 oil and 5 gas leases.
- 20
- leases on file · 15 oil, 5 gas
- 17
- operators, all time
- 1.06K
- bbl oil, last 12 reported -22%
- 40.1K
- mcf gas, last 12 reported +3%
- 5
- leases reporting volume
- 150K
- bbl oil, lifetime · 2.69M 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 40,096 · prior 12 38,796(+3%)
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 1,062 · prior 12 1,354(-22%)
Leases reporting volume
How many of the field's leases reported any oil or gas each month: the field's active footprint.
Latest month 5 · a year earlier 5(+0%)
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 8
| Operator | Leases | Oil, bbl | Gas, mcf | Last reported |
|---|---|---|---|---|
| Paratus Petroleum LLC | 4 | 86.6K | 1.48M | Jul 2026 |
| Xplore Oper, LLC | 4 | 33.7K | 554K | May 2023 |
| Miles Prod Co | 7 | 18.5K | 107K | Mar 2008 |
| G & F Oil, Inc | 1 | 5.04K | 107K | Jul 2026 |
| Moriah Res, Inc | 1 | 3.68K | 40.6K | Mar 2008 |
| Briar Engy Corp | 1 | 2.27K | 345K | Jul 2026 |
| Jay Management Co, LLC | 1 | 0 | 54.2K | Jul 2026 |
| Hep Oil Co, Ltd | 1 | 0 | 559 | May 2006 |
Counties
- Jack County → 18 leases
About this data
Field 55050666 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/55050666, documented in the API reference.