Texas oil lease
ProducingCOX -A-
Cox -A- is an oil lease in Glasscock County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.
1 well
- Operator
- Diamondback E&P LLC
- County
- Glasscock County
- RRC lease
- 08-33818
Is your check right?
Where it sits
This county
- Gas, last 12 months
- 365 mcf
- Oil in Jul 2026
- 51 bbl
Checks stopped on this lease?
- Operator
Operator changed: Diamondback E&P LLC took over from Endeavor Energy Resources L.P. in Jan 2025.
SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.
See why checks stop on this leaseProduction by month
Oil output fell 49% over the last 12 months
- Oil (bars)
- Gas (line)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Where the gas went
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant
- Processing plant (3)
- Transmission line (2)
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Who has run this lease
The operator changed once, most recently in Jan 2025
- Diamondback E&P LLC Jan 2025 to now
- Endeavor Energy Resources L.P. Jan 2020 to Dec 2024
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
1 well on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-173-31965 | 1 | Active |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From | Until |
|---|---|---|---|---|---|
| Enterprise Crude Oil LLC | Oil | Gathers | 100 | May 1, 2026 | – |
| Targa Pl Mid-Cont Westtex LLC | Casinghead gas | Buys | 100 | Nov 1, 2015 | – |
| Targa Pl Mid-Cont Westtex LLC | Casinghead gas | Gathers | 100 | Oct 1, 2015 | – |
| Lpc Crude Iii, LLC | Oil | Gathers | 100 | Apr 1, 2025 | May 1, 2026 |
| Oasis Transp & Marketing Corp. | Oil | Gathers | 100 | May 1, 2010 | Apr 1, 2025 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
What Diamondback Energy, Inc. told investors it received
| Quarter | Oil$ per bbl | Gas$ per mcf | Gas liquids$ per bbl | Filing |
|---|---|---|---|---|
| Q2 2026 | $96.82 | −$2.15 | $18.56 | SEC filing |
| Q1 2026 | $73.47 | $0.18 | $16.68 | SEC filing |
| Q4 2025 | $58.00 | $0.03 | $13.51 | SEC filing |
| Q3 2025 | $64.60 | $0.75 | $17.28 | SEC filing |
| Q2 2025 | $63.23 | $0.88 | $18.13 | SEC filing |
| Q1 2025 | $70.95 | $2.11 | $23.94 | SEC filing |
SourceDiamondback Energy, Inc. quarterly reports, SEC EDGAR, company-wide averages before hedging.
Estimate your royalty
36 months, newest first
| Month | Oil producedbbl | Oil soldbbl | Gas producedmcf | Gas soldmcf, codes 2+3 | Flaredmcf | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|---|---|---|
| Jul 2026Diamondback E&P | 51 | 194 | 0 | 0 | 0 | $80.46 | $2.89 |
| Jun 2026Diamondback E&P | 33 | 8 | 0 | 0 | 0 | $84.81 | $3.15 |
| May 2026Diamondback E&P | 30 | 10 | 0 | 0 | 0 | $102.13 | $2.94 |
| Apr 2026Diamondback E&P | 23 | 1 | 0 | 0 | 0 | $100.32 | $2.77 |
| Mar 2026Diamondback E&P | 20 | 5 | 0 | 0 | 0 | $91.38 | $3.04 |
| Feb 2026Diamondback E&P | 19 | 15 | 19 | 19 | 0 | $64.51 | $3.62 |
| Jan 2026Diamondback E&P | 17 | 17 | 0 | 0 | 0 | $60.04 | $7.72 |
| Dec 2025Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $57.97 | $4.26 |
| Nov 2025Diamondback E&P | 27 | 0 | 101 | 101 | 0 | $60.06 | $3.79 |
| Oct 2025Diamondback E&P | 92 | 44 | 137 | 137 | 0 | $60.89 | $3.19 |
| Sep 2025Diamondback E&P | 18 | 126 | 93 | 93 | 0 | $63.96 | $2.97 |
| Aug 2025Diamondback E&P | 10 | 9 | 15 | 15 | 0 | $64.86 | $2.91 |
| Jul 2025Diamondback E&P | 21 | 11 | 0 | 0 | 0 | $68.39 | $3.20 |
| Jun 2025Diamondback E&P | 4 | 0 | 0 | 0 | 0 | $68.17 | $3.02 |
| May 2025Diamondback E&P | 57 | 22 | 178 | 178 | 0 | $62.17 | $3.12 |
| Apr 2025Diamondback E&P | 44 | 1 | 202 | 202 | 0 | $63.54 | $3.42 |
| Mar 2025Diamondback E&P | 45 | 186 | 217 | 217 | 0 | $68.24 | $4.12 |
| Feb 2025Diamondback E&P | 77 | 8 | 121 | 121 | 0 | $71.53 | $4.19 |
| Jan 2025Diamondback E&P | 22 | 0 | 192 | 192 | 0 | $75.74 | $4.13 |
| Dec 2024Endeavor Energy | 50 | 0 | 224 | 224 | 0 | $70.12 | $3.01 |
| Nov 2024Endeavor Energy | 54 | 184 | 211 | 211 | 0 | $69.95 | $2.12 |
| Oct 2024Endeavor Energy | 154 | 102 | 183 | 183 | 0 | $71.99 | $2.20 |
| Sep 2024Endeavor Energy | 88 | 50 | 92 | 92 | 0 | $70.24 | $2.28 |
| Aug 2024Endeavor Energy | 46 | 21 | 13 | 13 | 0 | $76.68 | $1.99 |
| Jul 2024Endeavor Energy | 0 | 0 | 0 | 0 | 0 | $81.80 | $2.07 |
| Jun 2024Endeavor Energy | 38 | 4 | 84 | 84 | 0 | $79.77 | $2.54 |
| May 2024Endeavor Energy | 63 | 198 | 164 | 164 | 0 | $80.02 | $2.12 |
| Apr 2024Endeavor Energy | 2 | 0 | 33 | 33 | 0 | $85.35 | $1.60 |
| Mar 2024Endeavor Energy | 44 | 13 | 116 | 116 | 0 | $81.28 | $1.49 |
| Feb 2024Endeavor Energy | 47 | 8 | 125 | 125 | 0 | $77.25 | $1.72 |
| Jan 2024Endeavor Energy | 26 | 2 | 153 | 153 | 0 | $74.15 | $3.18 |
| Dec 2023Endeavor Energy | 59 | 22 | 482 | 482 | 0 | $71.90 | $2.52 |
| Nov 2023Endeavor Energy | 75 | 208 | 75 | 75 | 0 | $77.69 | $2.71 |
| Oct 2023Endeavor Energy | 204 | 193 | 46 | 46 | 0 | $85.64 | $2.98 |
| Sep 2023Endeavor Energy | 32 | 0 | 71 | 71 | 0 | $89.43 | $2.64 |
| Aug 2023Endeavor Energy | 14 | 14 | 42 | 42 | 0 | $81.39 | $2.58 |
SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.
How to check your stub against this lease Checks stopped on this lease? See the likely reasonsDo your checks match this lease?
Nearby
This lease belongs to
Diamondback E&P LLC in Glasscock County
- POWELL -3-
453 bbl
- HILLGER, ALTON
365 bbl
- JURECEK "D"
1,179 mcf
- COLE RANCH "45"
340 bbl
- REYNOLDS-GAMBILL -A-
300 bbl
- HUEGLER A
348 bbl
- BECKNELL, E.E.
332 bbl
- BIGBY-NEELY
189 bbl
- SCHWERTNER-DANIEL "B"
174 bbl
- HUEGLER
286 bbl
Spraberry (Trend Area) field
- COLE RANCH "45"
340 bbl
- THREE SISTERS
362 bbl
- GUITAR CONSOLIDATED
356 bbl
- STEVEN "2"
297 bbl
- LINDSEY 25
347 bbl
- DORIS
320 bbl
- UL II 49
306 bbl
- NAIL "J"
305 bbl
- WRIGHT
349 bbl
- REYNOLDS-GAMBILL -A-
300 bbl
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