Texas oil lease

Producing

GREYSTOKE 1-5 D

Name: GREYSTOKE 1-5 D monthly oil and gas production, Martin County, Texas
Creator: Texas Railroad Commission

Greystoke 1-5 D is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

2 wells

262,846bbl oil, since Feb 2026

Operator: Diamondback E&P LLC
County: Martin County
Field: Spraberry (Trend Area)
RRC lease: 08-65245

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Where it sits

This county

Martin County

Gas, since Feb 2026: 305,214 mcf
Oil in Jul 2026: 29,144 bbl

First check

Production started February 2026; the first check is due by about June 28, 2026 (estimate).

When is my first royalty check due?

Production by month

Oil output rose 11% since Feb 2026

Oil (bars)
Gas (line)

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

96% of the gas went to a transmission line in the 6 months reported

Transmission line (2)
Lease fuel (1)
Flared (4)

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Transmission line (2)
96% · 292,638 mcf
Lease fuel (1)
3.5% · 10,735 mcf
Flared (4)
0.6% · 1,841 mcf

0.6% of the gas flared in the 6 months reported. No month above 3%.

2 wells on this lease

Wells on GREYSTOKE 1-5 D
API number	Well no.	Status
42-317-46906	2JM	Active
42-317-46908	2WA	Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
Company	Product	Role	Share%	From
Medallion Operating Company, LLC	Oil	Gathers	100	Feb 11, 2026
Enterprise Products Operating LLC	Casinghead gas	Buys	100	Feb 11, 2026
Enterprise Products Operating LLC	Casinghead gas	Gathers	100	Feb 11, 2026

SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).

Who buys my oil Oil price check

727.71 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.

Check your decimal on this lease

Permits for Greystoke 1-5 D
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-317-46906	2JM	Jul 10, 2025	Mar 9, 2026	727.71	Horizontal, allocation
42-317-46908	2WA	Jul 10, 2025	Feb 11, 2026	727.71	Horizontal, allocation

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

What Diamondback Energy, Inc. told investors it received

Diamondback E&P LLC is linked to Diamondback Energy, Inc. (FANG).

Realized prices reported by Diamondback Energy, Inc.
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

6 months, newest first

Ledger for GREYSTOKE 1-5 D
Month	Oil producedbbl	Oil soldbbl	Gas producedmcf	Gas soldmcf, codes 2+3	Flaredmcf	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026	29,144	29,139	49,095	47,706	245	$80.46	$2.89
Jun 2026	48,275	48,397	72,445	69,711	727	$84.81	$3.15
May 2026	60,631	60,577	65,624	62,601	735	$102.13	$2.94
Apr 2026	58,617	58,635	57,415	55,406	26	$100.32	$2.77
Mar 2026	51,428	51,338	47,843	45,508	101	$91.38	$3.04
Feb 2026	14,751	14,655	12,792	11,706	7	$64.51	$3.62

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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