STUMBERG RANCH UNIT E
RRC oil lease 21725, district 01 · BRISCOE RANCH (EAGLEFORD) field · Dimmit County · operated by JAVELIN ENERGY PARTNERS MGMT LLC
STUMBERG RANCH UNIT E at a glance
Oil output in Mar 2026–May 2026 was down 41% from the same three months a year earlier. Over the last 12 months it reported 475,881 BBL of oil and 2,147,962 MCF of gas. In May 2026, the latest month not marked provisional, it reported 25,403 BBL and 147,128 MCF.
Royalty = (25,403 BBL × $97.31 WTI, Sep 2026, EIA + 147,128 MCF × $2.95 Henry Hub, Sep 2026, EIA) × your decimal. 0.001 is only a placeholder: enter the decimal from your check stub or division order. Gross, before taxes and deductions. Full estimator →
Oil + condensate (BBL per month, last 36 months)
Gas (MCF per month, last 36 months)
Jun 2026 and Jul 2026 are provisional (lighter bars) and usually rise as late reports arrive.
STUMBERG RANCH UNIT E production history in brief
By oil-equivalent volume over the last 12 months, STUMBERG RANCH UNIT E ranks #8 of 3,450 reporting leases in Dimmit County. It reported production in 14 of the 34 non-provisional months shown, starting in our window in Apr 2025. Its peak oil month in that window was May 2025 at 96,728 BBL. The lease is in the BRISCOE RANCH (EAGLEFORD) field and is operated by JAVELIN ENERGY PARTNERS MGMT LLC; production is reported for the lease as a whole, not per well.
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New permits nearby
New drilling permits issued this month in Dimmit County. RRC production data has no lease coordinates, so we match by county.
| Issued | Operator | Lease | Well | Depth (ft) |
|---|---|---|---|---|
| 2026-10-09 | INEOS USA OIL & GAS LLC | ANDERSON-STONE DIM HC5 | E 5H | 7,300 |
| 2026-10-09 | JONAH ENERGY LLC | DOS A A | 4202EH | 7,500 |
| 2026-10-09 | JONAH ENERGY LLC | DOS A B | 4204EH | 7,500 |
| 2026-10-09 | JONAH ENERGY LLC | DOS A C | 4206EH | 7,500 |
| 2026-10-09 | JONAH ENERGY LLC | DOS A D | 4208EH | 7,500 |
Monthly production
| Month | Oil (BBL) | Gas (MCF) |
|---|---|---|
| Jul 2026 (provisional) | 20,322 | 123,907 |
| Jun 2026 (provisional) | 21,949 | 130,411 |
| May 2026 | 25,403 | 147,128 |
| Apr 2026 | 25,591 | 143,977 |
| Mar 2026 | 28,075 | 165,964 |
| Feb 2026 | 28,732 | 169,334 |
| Jan 2026 | 38,604 | 200,255 |
| Dec 2025 | 37,820 | 167,963 |
| Nov 2025 | 48,290 | 217,657 |
| Oct 2025 | 61,553 | 247,885 |
| Sep 2025 | 65,573 | 218,735 |
| Aug 2025 | 73,969 | 214,746 |
| Jul 2025 | 86,269 | 209,375 |
| Jun 2025 | 90,952 | 190,617 |
| May 2025 | 96,728 | 181,752 |
| Apr 2025 | 36,741 | 59,510 |
Check these figures in the RRC Production Data Query (Specific Lease Query: district 01, lease 21725). Production is reported per lease, so a lease with several wells is not split by well.
Source: Texas Railroad Commission (data sets, Production Data Query). Data date: RRC Production Data Query dump, extract dated Sep 18, 2026; production through Jul 2026. Jun 2026 and Jul 2026 are provisional: operators file late and amend, so these months usually rise in later releases. Oil = crude oil + condensate (BBL); gas = gas-well gas + casinghead gas (MCF), as reported to RRC. Methodology.