Texas oil lease
ProducingBLACKJACK 16-21 F
Blackjack 16-21 F is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.
1 well
- Operator
- Diamondback E&P LLC
- County
- Martin County
- RRC lease
- 08-60666
Is your check right?
Where it sits
This county
- Gas, last 12 months
- 281,372 mcf
- Oil in Jul 2026
- 11,696 bbl
Checks stopped on this lease?
- Operator
Operator changed: Diamondback E&P LLC took over from Pbex Operations, LLC in May 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 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
95% of the gas went to a transmission line in the 10 months reported
- Transmission line (2)
- Lease fuel (1)
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Transmission line (2)
95% · 268,218 mcf
Lease fuel (1)
4.7% · 13,154 mcf
Who has run this lease
The operator changed 2 times, most recently in May 2025
- Diamondback E&P LLC May 2025 to now
- Pbex Operations, LLC Jul 2024 to Apr 2025
- Diamondback E&P LLC Dec 2022 to Jun 2024
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
1 well on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-317-44664 | 303H | Active |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From | Until |
|---|---|---|---|---|---|
| Energy Transfer Company | Oil | Gathers | 100 | Oct 1, 2025 | – |
| Targa Pl Mid-Cont Westtex LLC | Casinghead gas | Buys | 100 | Dec 26, 2022 | – |
| Targa Pl Mid-Cont Westtex LLC | Casinghead gas | Gathers | 100 | Dec 26, 2022 | – |
| Nustar Permian Trans and Stg,llc | Oil | Gathers | 100 | Dec 26, 2022 | Oct 1, 2025 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
493.22 acres on the newest permit
- Worth asking
An allocation well is on this lease
A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-317-44664 | 303H | Aug 31, 2022 | Oct 2, 2025 | 493.22 |
| 42-317-44664 | 6MS | Aug 31, 2022 | Dec 26, 2022 | 493.22 |
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 | 11,696 | 11,704 | 23,275 | 22,042 | 0 | $80.46 | $2.89 |
| Jun 2026Diamondback E&P | 11,462 | 11,411 | 20,357 | 19,305 | 0 | $84.81 | $3.15 |
| May 2026Diamondback E&P | 10,045 | 10,049 | 16,381 | 15,654 | 0 | $102.13 | $2.94 |
| Apr 2026Diamondback E&P | 11,835 | 11,869 | 17,574 | 16,988 | 0 | $100.32 | $2.77 |
| Mar 2026Diamondback E&P | 14,403 | 14,377 | 18,430 | 17,713 | 0 | $91.38 | $3.04 |
| Feb 2026Diamondback E&P | 17,528 | 17,606 | 19,835 | 18,904 | 0 | $64.51 | $3.62 |
| Jan 2026Diamondback E&P | 25,026 | 25,050 | 28,701 | 27,497 | 0 | $60.04 | $7.72 |
| Dec 2025Diamondback E&P | 37,714 | 37,641 | 49,697 | 46,969 | 0 | $57.97 | $4.26 |
| Nov 2025Diamondback E&P | 47,462 | 47,572 | 47,959 | 45,454 | 0 | $60.06 | $3.79 |
| Oct 2025Diamondback E&P | 53,258 | 53,055 | 39,163 | 37,692 | 0 | $60.89 | $3.19 |
| Sep 2025Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $63.96 | $2.97 |
| Aug 2025Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $64.86 | $2.91 |
| Jul 2025Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $68.39 | $3.20 |
| Jun 2025Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $68.17 | $3.02 |
| May 2025Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $62.17 | $3.12 |
| Apr 2025Pbex Operations, | 0 | 0 | 0 | 0 | 0 | $63.54 | $3.42 |
| Mar 2025Pbex Operations, | 0 | 0 | 0 | 0 | 0 | $68.24 | $4.12 |
| Feb 2025Pbex Operations, | 0 | 0 | 0 | 0 | 0 | $71.53 | $4.19 |
| Jan 2025Pbex Operations, | 0 | 0 | 0 | 0 | 0 | $75.74 | $4.13 |
| Dec 2024Pbex Operations, | 0 | 0 | 0 | 0 | 0 | $70.12 | $3.01 |
| Nov 2024Pbex Operations, | 0 | 0 | 0 | 0 | 0 | $69.95 | $2.12 |
| Oct 2024Pbex Operations, | 0 | 0 | 0 | 0 | 0 | $71.99 | $2.20 |
| Sep 2024Pbex Operations, | 0 | 0 | 0 | 0 | 0 | $70.24 | $2.28 |
| Aug 2024Pbex Operations, | 0 | 0 | 0 | 0 | 0 | $76.68 | $1.99 |
| Jul 2024Pbex Operations, | 0 | 0 | 0 | 0 | 0 | $81.80 | $2.07 |
| Jun 2024Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $79.77 | $2.54 |
| May 2024Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $80.02 | $2.12 |
| Apr 2024Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $85.35 | $1.60 |
| Mar 2024Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $81.28 | $1.49 |
| Feb 2024Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $77.25 | $1.72 |
| Jan 2024Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $74.15 | $3.18 |
| Dec 2023Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $71.90 | $2.52 |
| Nov 2023Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $77.69 | $2.71 |
| Oct 2023Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $85.64 | $2.98 |
| Sep 2023Diamondback E&P | 0 | 0 | 0 | 0 | 0 | $89.43 | $2.64 |
| Aug 2023Diamondback E&P | 0 | 0 | 0 | 0 | 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 Martin County
- ABU GARCIA 28-16 J
205,276 bbl
- GUARDIAN EAST 250 L
236,601 bbl
- ELIZABETH ANNE 134 B
233,475 bbl
- GUARDIAN EAST 250 K
240,425 bbl
- REDINGTON 43-18 L
231,845 bbl
- HEIDELBERG 30-31 K
233,417 bbl
- BLAGRAVE A 42-43
233,343 bbl
- GREYSTOKE 1-5 B
236,133 bbl
- SPAATZ 38-47 C
235,049 bbl
- GUARDIAN EAST 250 E
223,940 bbl
Spraberry (Trend Area) field
- ELIZABETH ANNE 134 B
233,475 bbl
- JCF-DAVIDSON 11R
239,464 bbl
- GUARDIAN EAST 250 K
240,425 bbl
- QUINLYN 36B
201,434 bbl
- MABEE DDA A22
230,976 bbl
- TXL 21 UNIT 1
185,577 bbl
- SHACKELFORD 9DE
225,280 bbl
- KOLACHE
222,655 bbl
- TXL 25-40 UNIT 2
193,670 bbl
- SHACKELFORD 29-17M
230,450 bbl
Leases within 10 km
- BLACKJACK 16-21 A
294,428 bbl · 0 km
- BLACKJACK 16-21 E
103,029 bbl · 0 km
- BLACKJACK 16-21 D
216,681 bbl · 0 km
- BLACKJACK 16-21 C
111,023 bbl · 0 km
- BLACKJACK 16-21 B
168,800 bbl · 0 km
- RHODES "16"
2,604 bbl · 0.2 km
- SADLER, DORIS "16"
0 bbl · 0.3 km
- RHODES -16A-
2,558 bbl · 0.4 km
- SMITH JALONICK 16-21 N
0 bbl · 0.5 km
- SMITH JALONICK 16-21 M
0 bbl · 0.5 km
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