Texas oil lease
ProducingMAMBA 6-35 UNIT 2
Mamba 6-35 Unit 2 is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.
2 wells
- Operator
- Diamondback E&P LLC
- County
- Martin County
- RRC lease
- 08-59127
Is your check right?
Where it sits
This county
- Gas, last 12 months
- 422,703 mcf
- Oil in Jul 2026
- 3,599 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 60% 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)
98% · 413,623 mcf
Lease fuel (1)
1.8% · 7,473 mcf
Flared (4)
0.4% · 1,607 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.
2 wells on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-317-44459 | 271 | Active |
| 42-317-44460 | 281 | 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).
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 | 3,599 | 3,628 | 55,004 | 53,796 | 358 | $80.46 | $2.89 |
| Jun 2026Diamondback E&P | 3,841 | 3,774 | 54,130 | 52,943 | 272 | $84.81 | $3.15 |
| May 2026Diamondback E&P | 64 | 191 | 54,714 | 53,752 | 24 | $102.13 | $2.94 |
| Apr 2026Diamondback E&P | 4,726 | 4,618 | 36,017 | 35,323 | 14 | $100.32 | $2.77 |
| Mar 2026Diamondback E&P | 867 | 932 | 24,132 | 23,623 | 0 | $91.38 | $3.04 |
| Feb 2026Diamondback E&P | 3,050 | 3,105 | 19,364 | 18,954 | 0 | $64.51 | $3.62 |
| Jan 2026Diamondback E&P | 2,395 | 2,257 | 11,561 | 11,295 | 48 | $60.04 | $7.72 |
| Dec 2025Diamondback E&P | 92 | 90 | 17,327 | 16,958 | 4 | $57.97 | $4.26 |
| Nov 2025Diamondback E&P | 40 | 106 | 32,819 | 32,005 | 234 | $60.06 | $3.79 |
| Oct 2025Diamondback E&P | 4,897 | 5,000 | 36,156 | 35,512 | 0 | $60.89 | $3.19 |
| Sep 2025Diamondback E&P | 4,041 | 3,925 | 37,124 | 36,003 | 495 | $63.96 | $2.97 |
| Aug 2025Diamondback E&P | 5,374 | 5,383 | 44,355 | 43,459 | 158 | $64.86 | $2.91 |
| Jul 2025Diamondback E&P | 5,669 | 5,665 | 41,297 | 40,591 | 7 | $68.39 | $3.20 |
| Jun 2025Diamondback E&P | 5,754 | 5,758 | 32,164 | 31,534 | 59 | $68.17 | $3.02 |
| May 2025Diamondback E&P | 5,046 | 5,036 | 23,667 | 22,908 | 316 | $62.17 | $3.12 |
| Apr 2025Diamondback E&P | 4,998 | 4,986 | 22,884 | 21,782 | 803 | $63.54 | $3.42 |
| Mar 2025Diamondback E&P | 4,812 | 4,829 | 34,669 | 34,089 | 0 | $68.24 | $4.12 |
| Feb 2025Diamondback E&P | 5,781 | 5,769 | 34,292 | 33,431 | 318 | $71.53 | $4.19 |
| Jan 2025Diamondback E&P | 6,353 | 6,370 | 40,846 | 40,205 | 57 | $75.74 | $4.13 |
| Dec 2024Endeavor Energy | 7,490 | 7,481 | 46,082 | 45,326 | 0 | $70.12 | $3.01 |
| Nov 2024Endeavor Energy | 7,705 | 7,713 | 55,717 | 54,840 | 0 | $69.95 | $2.12 |
| Oct 2024Endeavor Energy | 8,932 | 8,954 | 67,658 | 65,767 | 0 | $71.99 | $2.20 |
| Sep 2024Endeavor Energy | 10,967 | 10,942 | 72,038 | 69,786 | 221 | $70.24 | $2.28 |
| Aug 2024Endeavor Energy | 8,997 | 8,990 | 30,340 | 28,725 | 656 | $76.68 | $1.99 |
| Jul 2024Endeavor Energy | 9,035 | 9,035 | 35,138 | 33,945 | 10 | $81.80 | $2.07 |
| Jun 2024Endeavor Energy | 9,932 | 9,942 | 41,117 | 38,772 | 792 | $79.77 | $2.54 |
| May 2024Endeavor Energy | 10,171 | 10,154 | 41,188 | 39,213 | 284 | $80.02 | $2.12 |
| Apr 2024Endeavor Energy | 8,241 | 8,245 | 16,898 | 15,989 | 343 | $85.35 | $1.60 |
| Mar 2024Endeavor Energy | 4,346 | 4,352 | 4,468 | 4,229 | 25 | $81.28 | $1.49 |
| Feb 2024Endeavor Energy | 7,993 | 8,009 | 19,963 | 18,388 | 958 | $77.25 | $1.72 |
| Jan 2024Endeavor Energy | 8,270 | 8,265 | 18,775 | 17,623 | 855 | $74.15 | $3.18 |
| Dec 2023Endeavor Energy | 13,862 | 13,892 | 68,491 | 64,333 | 3,223 | $71.90 | $2.52 |
| Nov 2023Endeavor Energy | 14,769 | 14,744 | 66,921 | 64,818 | 1,152 | $77.69 | $2.71 |
| Oct 2023Endeavor Energy | 17,718 | 17,729 | 79,281 | 78,286 | 0 | $85.64 | $2.98 |
| Sep 2023Endeavor Energy | 16,815 | 16,808 | 58,740 | 57,996 | 1 | $89.43 | $2.64 |
| Aug 2023Endeavor Energy | 21,617 | 21,612 | 65,389 | 64,677 | 6 | $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
- UL AUBURN 15-28 E
50,499 bbl
- JO GREGORY 250 L
42,011 bbl
- ZEBCO 27-39 G
40,807 bbl
- ILIAD 27-18 B
48,686 bbl
- HALSEY 4
46,505 bbl
- MOTT 14
40,946 bbl
- FLO D
41,869 bbl
- MABEE DH 10-11 H
45,442 bbl
- ZEBCO 27-39 N
38,762 bbl
- JAGUAR WEST 61-101 B
46,801 bbl
Spraberry (Trend Area) field
- MUZZLE 254 B
38,693 bbl
- STIMSON-NAIL E17N
48,244 bbl
- FLO D
41,869 bbl
- MABEE DH 10-11 H
45,442 bbl
- RAVENCLAW 14C
41,119 bbl
- ZEBCO 27-39 N
38,762 bbl
- ST RITA 29-32 D UNIT
44,062 bbl
- FRANCES 12-1-A
38,783 bbl
- BALCONES W UNIT D
48,930 bbl
- JAGUAR WEST 61-101 B
46,801 bbl
Leases within 10 km
- DICKENSON 7-18 WEST
279,897 bbl · 0 km
- MAMBA 6-35 UNIT 2A
298,420 bbl · 0.1 km
- DICKENSON "7"
3,568 bbl · 0.4 km
- WOODY -E-
0 bbl · 0.4 km
- GRIMES 1
7,706 bbl · 0.5 km
- WOODY "6"
0 bbl · 0.8 km
- WOODY 6-35 UNIT 1
167,762 bbl · 0.9 km
- HALE, NETTIE
0 bbl · 0.9 km
- DICKENSON -C-
3,678 bbl · 1.1 km
- HALE "B"
0 bbl · 1.1 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
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Permit 0918686 · Oct 1, 2026
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Permit 0918676 · Oct 1, 2026
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Permit 0918675 · Oct 1, 2026
GLASS RANCH E23J #410H
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Permit 0918683 · Oct 1, 2026