Texas oil lease
ProducingCHEST THUMPER 1-5 UNIT 1A
Chest Thumper 1-5 Unit 1A is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.
3 wells
- Operator
- Diamondback E&P LLC
- County
- Martin County
- RRC lease
- 08-60619
Is your check right?
Where it sits
This county
- Gas, last 12 months
- 282,924 mcf
- Oil in Jul 2026
- 7,951 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 59% 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
Flaring peaked at 6.4% of the gas in Apr 2024.
- Processing plant (3)
- Transmission line (2)
- Lease fuel (1)
- Flared (4)
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Transmission line (2)
100% · 282,201 mcf
Flared (4)
0.3% · 723 mcf
0.3% of the gas flared in the last 12 months. One month above 3%.
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. Apr 2024 to Dec 2024
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
3 wells on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-317-45292 | 221 | Active |
| 42-317-45293 | 231 | Active |
| 42-317-45294 | 241 | Active |
SourceTexas Railroad Commission Wellbore Query.
809.66 acres on the newest permit
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-317-45292 | 221 | Jun 8, 2023 | Dec 25, 2023 | 809.66 |
| 42-317-45293 | 231 | Jun 8, 2023 | Oct 2, 2023 | 809.66 |
| 42-317-45294 | 241 | Jun 8, 2023 | Sep 18, 2023 | 809.66 |
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 | $23.94 | SEC filing |
SourceDiamondback Energy, Inc. quarterly reports, SEC EDGAR, company-wide averages before hedging.
Estimate your royalty
28 months, newest first
| Month | Oil producedbbl | Oil soldbbl | Gas producedmcf | Gas soldmcf, codes 2+3 | Flaredmcf | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|---|---|---|
| Jul 2026Diamondback E&P | 7,951 | 8,036 | 26,569 | 26,569 | 0 | $80.46 | $2.89 |
| Jun 2026Diamondback E&P | 8,737 | 8,734 | 23,954 | 23,954 | 0 | $84.81 | $3.15 |
| May 2026Diamondback E&P | 9,366 | 9,348 | 20,857 | 20,857 | 0 | $102.13 | $2.94 |
| Apr 2026Diamondback E&P | 8,549 | 8,518 | 16,543 | 16,244 | 299 | $100.32 | $2.77 |
| Mar 2026Diamondback E&P | 4,792 | 4,794 | 9,717 | 9,717 | 0 | $91.38 | $3.04 |
| Feb 2026Diamondback E&P | 1,906 | 1,926 | 5,034 | 5,022 | 12 | $64.51 | $3.62 |
| Jan 2026Diamondback E&P | 2,767 | 2,911 | 13,345 | 13,282 | 63 | $60.04 | $7.72 |
| Dec 2025Diamondback E&P | 9,110 | 8,946 | 33,693 | 33,631 | 62 | $57.97 | $4.26 |
| Nov 2025Diamondback E&P | 10,025 | 10,001 | 33,164 | 32,997 | 167 | $60.06 | $3.79 |
| Oct 2025Diamondback E&P | 10,082 | 10,230 | 32,755 | 32,734 | 21 | $60.89 | $3.19 |
| Sep 2025Diamondback E&P | 10,273 | 10,127 | 30,918 | 30,838 | 80 | $63.96 | $2.97 |
| Aug 2025Diamondback E&P | 11,267 | 11,275 | 36,375 | 36,356 | 19 | $64.86 | $2.91 |
| Jul 2025Diamondback E&P | 13,562 | 13,559 | 42,113 | 42,113 | 0 | $68.39 | $3.20 |
| Jun 2025Diamondback E&P | 12,411 | 12,427 | 35,513 | 35,513 | 0 | $68.17 | $3.02 |
| May 2025Diamondback E&P | 14,421 | 14,405 | 44,118 | 44,118 | 0 | $62.17 | $3.12 |
| Apr 2025Diamondback E&P | 14,804 | 14,810 | 44,940 | 44,911 | 29 | $63.54 | $3.42 |
| Mar 2025Diamondback E&P | 16,584 | 16,576 | 48,415 | 48,406 | 9 | $68.24 | $4.12 |
| Feb 2025Diamondback E&P | 10,897 | 10,930 | 24,795 | 24,787 | 8 | $71.53 | $4.19 |
| Jan 2025Diamondback E&P | 16,134 | 16,141 | 42,027 | 41,893 | 134 | $75.74 | $4.13 |
| Dec 2024Endeavor Energy | 20,259 | 20,275 | 53,823 | 53,823 | 0 | $70.12 | $3.01 |
| Nov 2024Endeavor Energy | 21,519 | 21,495 | 50,843 | 50,843 | 0 | $69.95 | $2.12 |
| Oct 2024Endeavor Energy | 25,302 | 25,294 | 55,480 | 54,673 | 88 | $71.99 | $2.20 |
| Sep 2024Endeavor Energy | 28,779 | 28,820 | 54,553 | 53,416 | 436 | $70.24 | $2.28 |
| Aug 2024Endeavor Energy | 39,282 | 39,268 | 68,572 | 67,439 | 272 | $76.68 | $1.99 |
| Jul 2024Endeavor Energy | 55,053 | 55,099 | 90,329 | 88,977 | 203 | $81.80 | $2.07 |
| Jun 2024Endeavor Energy | 81,493 | 81,482 | 109,172 | 106,747 | 895 | $79.77 | $2.54 |
| May 2024Endeavor Energy | 101,399 | 101,404 | 108,224 | 106,494 | 24 | $80.02 | $2.12 |
| Apr 2024Endeavor Energy | 46,179 | 46,022 | 44,203 | 41,173 | 2,808 | $85.35 | $1.60 |
Flared above 3%
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 Martin County
- ABU GARCIA 28-16 U
82,508 bbl
- UL MARSHALLDALE 15-28 A
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- GUARDIAN 250 L
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- ABU GARCIA 28-16 Q
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Spraberry (Trend Area) field
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97,973 bbl
- BIGBY-TXL E15 I
86,955 bbl
- SHIMANO 28-40 J
93,473 bbl
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