Texas oil lease
ProducingMAMBA 6-35 UNIT 2A
Mamba 6-35 Unit 2A is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.
14 wells
- Operator
- Diamondback E&P LLC
- County
- Martin County
- RRC lease
- 08-59125
Is your check right?
Where it sits
This county
- Gas, last 12 months
- 2,292,022 mcf
- Oil in Jul 2026
- 24,418 bbl
Checks stopped on this lease?
- Operator
Operator changed: Diamondback E&P LLC took over from Endeavor Energy Resources L.P. in Jan 2025.
- Buyer
Buyer changed: ENTERPRISE M B MIDSTREAM LLC replaced ENT NAVITAS MDSTRM MDLND BAS LLC as the buyer of this lease's gas from oil wells on Aug 1, 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 51% 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 4.8% of the gas in Feb 2024.
- Processing plant (3)
- Transmission line (2)
- Lease fuel (1)
- Flared (4)
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Transmission line (2)
99% · 2,263,311 mcf
Lease fuel (1)
0.9% · 20,321 mcf
Flared (4)
0.4% · 8,390 mcf
0.4% of the gas flared in the last 12 months. 4 months 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. Feb 2023 to Dec 2024
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
14 wells on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-317-44457 | 251 | Active |
| 42-317-44458 | 161 | Active |
| 42-317-44461 | 264 | Active |
| 42-317-44469 | 274 | Active |
| 42-317-44470 | 152 | Active |
| 42-317-44472 | 162 | Active |
| 42-317-44473 | 163 | Active |
| 42-317-44474 | 165 | Active |
| 42-317-44476 | 172 | Active |
| 42-317-44478 | 173 | Active |
| 42-317-44480 | 175 | Active |
| 42-317-44483 | 176 | Active |
| 42-317-44485 | 182 | Active |
| 42-317-44486 | 183 | Active |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From | Until |
|---|---|---|---|---|---|
| Medallion Operating Company, LLC | Oil | Gathers | 100 | Feb 24, 2023 | – |
| Enterprise M B Midstream LLC | Casinghead gas | Buys | 100 | Aug 1, 2025 | – |
| Enterprise Products Operating LLC | Casinghead gas | Gathers | 100 | Aug 1, 2025 | – |
| Ent Navitas Mdstrm Mdlnd Bas LLC | Casinghead gas | Gathers | 100 | Feb 24, 2023 | Aug 1, 2025 |
| Ent Navitas Mdstrm Mdlnd Bas LLC | Casinghead gas | Buys | 100 | Feb 24, 2023 | Aug 1, 2025 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
660.99 acres on the newest permit
- Good to know
14 wells are listed on this lease
Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.
- Worth asking
A Rule 37 case is listed
The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-317-44457 | 251 | Jun 21, 2022 | Feb 24, 2023 | 660.99 |
| 42-317-44458 | 161 | Jun 21, 2022 | Feb 24, 2023 | 660.99 |
| 42-317-44461 | 264 | Jun 21, 2022 | Feb 24, 2023 | 660.99 |
| 42-317-44469 | 274 | Jun 21, 2022 | Feb 24, 2023 | 660.99 |
| 42-317-44470 | 152 | Jun 21, 2022 | Feb 24, 2023 | 660.99 |
| 42-317-44472 | 162 | Jun 21, 2022 | Feb 24, 2023 | 660.99 |
| 42-317-44473 | 163 | Jun 21, 2022 | Feb 25, 2023 | 660.99 |
| 42-317-44474 | 165 | Jun 21, 2022 | Feb 24, 2023 | 660.99 |
| 42-317-44476 | 172 | Jun 21, 2022 | Feb 24, 2023 | 660.99 |
| 42-317-44478 | 173 | Jun 21, 2022 | Feb 25, 2023 | 660.99 |
| 42-317-44480 | 175 | Jun 21, 2022 | Feb 24, 2023 | 660.99 |
| 42-317-44483 | 176 | Jun 21, 2022 | Feb 25, 2023 | 660.99 |
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 | 24,418 | 24,550 | 203,530 | 200,718 | 1,335 | $80.46 | $2.89 |
| Jun 2026Diamondback E&P | 22,754 | 23,123 | 184,268 | 181,884 | 934 | $84.81 | $3.15 |
| May 2026Diamondback E&P | 30,299 | 30,156 | 188,954 | 187,353 | 84 | $102.13 | $2.94 |
| Apr 2026Diamondback E&P | 23,112 | 22,615 | 168,605 | 166,989 | 66 | $100.32 | $2.77 |
| Mar 2026Diamondback E&P | 5,688 | 6,172 | 180,854 | 179,043 | 0 | $91.38 | $3.04 |
| Feb 2026Diamondback E&P | 22,022 | 22,631 | 161,288 | 159,451 | 0 | $64.51 | $3.62 |
| Jan 2026Diamondback E&P | 20,949 | 20,474 | 159,484 | 157,517 | 665 | $60.04 | $7.72 |
| Dec 2025Diamondback E&P | 22,938 | 22,850 | 182,481 | 180,600 | 43 | $57.97 | $4.26 |
| Nov 2025Diamondback E&P | 33,007 | 32,704 | 200,555 | 197,295 | 1,438 | $60.06 | $3.79 |
| Oct 2025Diamondback E&P | 26,283 | 27,248 | 206,830 | 204,896 | 0 | $60.89 | $3.19 |
| Sep 2025Diamondback E&P | 31,501 | 30,532 | 222,756 | 217,885 | 2,991 | $63.96 | $2.97 |
| Aug 2025Diamondback E&P | 35,449 | 35,491 | 232,417 | 229,680 | 834 | $64.86 | $2.91 |
| Jul 2025Diamondback E&P | 35,730 | 35,764 | 232,107 | 230,215 | 39 | $68.39 | $3.20 |
| Jun 2025Diamondback E&P | 42,447 | 42,487 | 229,465 | 227,084 | 426 | $68.17 | $3.02 |
| May 2025Diamondback E&P | 37,673 | 37,581 | 204,607 | 200,007 | 2,762 | $62.17 | $3.12 |
| Apr 2025Diamondback E&P | 35,716 | 35,713 | 194,841 | 186,652 | 6,898 | $63.54 | $3.42 |
| Mar 2025Diamondback E&P | 44,227 | 44,320 | 221,024 | 219,096 | 0 | $68.24 | $4.12 |
| Feb 2025Diamondback E&P | 46,672 | 46,565 | 214,032 | 210,357 | 1,985 | $71.53 | $4.19 |
| Jan 2025Diamondback E&P | 50,983 | 51,010 | 221,971 | 219,953 | 313 | $75.74 | $4.13 |
| Dec 2024Endeavor Energy | 46,811 | 46,820 | 221,146 | 219,063 | 0 | $70.12 | $3.01 |
| Nov 2024Endeavor Energy | 57,349 | 57,421 | 253,840 | 251,785 | 0 | $69.95 | $2.12 |
| Oct 2024Endeavor Energy | 67,664 | 67,702 | 275,989 | 268,276 | 0 | $71.99 | $2.20 |
| Sep 2024Endeavor Energy | 66,999 | 66,985 | 263,505 | 255,270 | 807 | $70.24 | $2.28 |
| Aug 2024Endeavor Energy | 76,354 | 76,314 | 261,166 | 247,263 | 5,648 | $76.68 | $1.99 |
| Jul 2024Endeavor Energy | 79,700 | 79,668 | 240,284 | 232,123 | 71 | $81.80 | $2.07 |
| Jun 2024Endeavor Energy | 81,958 | 82,061 | 219,090 | 206,593 | 4,219 | $79.77 | $2.54 |
| May 2024Endeavor Energy | 87,385 | 87,444 | 200,736 | 191,114 | 1,382 | $80.02 | $2.12 |
| Apr 2024Endeavor Energy | 108,460 | 108,533 | 195,676 | 185,151 | 3,967 | $85.35 | $1.60 |
| Mar 2024Endeavor Energy | 58,994 | 58,829 | 155,432 | 147,125 | 887 | $81.28 | $1.49 |
| Feb 2024Endeavor Energy | 71,314 | 71,648 | 252,999 | 233,040 | 12,139 | $77.25 | $1.72 |
| Jan 2024Endeavor Energy | 96,359 | 96,080 | 329,657 | 309,426 | 15,015 | $74.15 | $3.18 |
| Dec 2023Endeavor Energy | 114,603 | 114,825 | 369,470 | 347,044 | 17,384 | $71.90 | $2.52 |
| Nov 2023Endeavor Energy | 119,265 | 119,078 | 359,375 | 348,086 | 6,184 | $77.69 | $2.71 |
| Oct 2023Endeavor Energy | 145,312 | 145,552 | 391,145 | 386,237 | 0 | $85.64 | $2.98 |
| Sep 2023Endeavor Energy | 168,498 | 168,378 | 406,900 | 401,748 | 6 | $89.43 | $2.64 |
| Aug 2023Endeavor Energy | 203,754 | 203,837 | 453,614 | 448,674 | 42 | $81.39 | $2.58 |
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
- AMOCO-HOLT
335,295 bbl
- JONES-HOLTON
309,915 bbl
- ZEUS 7-6 UNIT 2
374,252 bbl
- PIRANHA 6-3 D
379,187 bbl
- AIRFLO 9-4 A
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- TRUE GRIT 16-17 F
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- GUARDIAN EAST 250 R
368,831 bbl
- GUARDIAN EAST 250 F
367,156 bbl
- HERA 55-46 UNIT 2
344,154 bbl
- BLACKGOLDENEYE 13-1 UNIT 2
362,063 bbl
Spraberry (Trend Area) field
- TXL 18 UNIT 1
314,483 bbl
- AIRFLO 9-4 A
367,743 bbl
- NORTHEAST SCHARBAUER
359,504 bbl
- KATHLEEN-FLANAGAN 10E
372,406 bbl
- JUNE EAST A
371,169 bbl
- RIO LAVACA 17-48 UNIT 2
308,696 bbl
- QUINLYN 36A
350,487 bbl
- SHACKELFORD 31-26C
369,042 bbl
- TRUE GRIT 16-17 F
374,264 bbl
- DAVIDSON B 34F
365,970 bbl
Leases within 10 km
- DICKENSON 7-18 WEST
279,897 bbl · 0 km
- MAMBA 6-35 UNIT 2
32,986 bbl · 0.1 km
- WOODY -E-
0 bbl · 0.3 km
- DICKENSON "7"
3,568 bbl · 0.4 km
- GRIMES 1
7,706 bbl · 0.6 km
- WOODY "6"
0 bbl · 0.7 km
- WOODY 6-35 UNIT 1
167,762 bbl · 0.7 km
- DICKENSON -C-
3,678 bbl · 1 km
- HALE, NETTIE
0 bbl · 1 km
- HALE "B"
0 bbl · 1.2 km
Drilling permits within 10 km
GLASS RANCH E23F #406H
new drill · horizontal · Pioneer Natural Res. USA, Inc. · Martin County · 9.4 km
Permit 0918674 · Oct 1, 2026
GLASS RANCH E23L #412H
new drill · horizontal · Pioneer Natural Res. USA, Inc. · Martin County · 9.6 km
Permit 0918686 · Oct 1, 2026
GLASS RANCH E23H #408H
new drill · horizontal · Pioneer Natural Res. USA, Inc. · Martin County · 9.4 km
Permit 0918676 · Oct 1, 2026
GLASS RANCH E23G #407H
new drill · horizontal · Pioneer Natural Res. USA, Inc. · Martin County · 9.4 km
Permit 0918675 · Oct 1, 2026
GLASS RANCH E23J #410H
new drill · horizontal · Pioneer Natural Res. USA, Inc. · Martin County · 9.6 km
Permit 0918683 · Oct 1, 2026