Texas oil lease

Producing

HEIDELBERG 30-31 D

Name: HEIDELBERG 30-31 D monthly oil and gas production, Martin County, Texas
Creator: Texas Railroad Commission

Heidelberg 30-31 D is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

2 wells

336,774bbl oil, since Dec 2025

Operator: Diamondback E&P LLC
County: Martin County
Field: Spraberry (Trend Area)
RRC lease: 08-64492

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Where it sits

This county

Martin County

Gas, since Dec 2025: 486,669 mcf
Oil in Jul 2026: 23,726 bbl

First check

Production started January 2026; the first check is due by about May 31, 2026 (estimate).

When is my first royalty check due?

Production by month

Oil output rose 6% since Dec 2025

Oil (bars)
Gas (line)

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

98% of the gas went to a transmission line in the 7 months reported

Flaring peaked at 11.0% of the gas in Jan 2026.

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

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Transmission line (2)
98% · 479,103 mcf
Flared (4)
1.2% · 6,010 mcf
Lease fuel (1)
0.3% · 1,556 mcf

1.2% of the gas flared in the 7 months reported. One month above 3%.

2 wells on this lease

Wells on HEIDELBERG 30-31 D
API number	Well no.	Status
42-317-46857	2WB	Active
42-317-46858	2LS	Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
Company	Product	Role	Share%	From
Et-S Permian Pipeline Company Ll	Oil	Gathers	100	Sep 15, 2025
Etc North Permian Midstream LLC	Casinghead gas	Buys	100	Sep 15, 2025
Energy Transfer Company	Casinghead gas	Gathers	100	Sep 15, 2025

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

Who buys my oil Oil price check

480.31 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 Heidelberg 30-31 D
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-317-46858	2LS	Jul 18, 2025	Aug 18, 2025	480.31	Horizontal, allocation
42-317-46857	2WB	Jul 17, 2025	Sep 15, 2025	480.31	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

8 months, newest first

Ledger for HEIDELBERG 30-31 D
Month	Oil producedbbl	Oil soldbbl	Gas producedmcf	Gas soldmcf, codes 2+3	Flaredmcf	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026	23,726	23,724	55,323	55,105	0	$80.46	$2.89
Jun 2026	30,351	30,358	58,332	57,036	1,082	$84.81	$3.15
May 2026	45,169	45,185	73,508	72,911	386	$102.13	$2.94
Apr 2026	63,046	63,037	91,557	91,021	293	$100.32	$2.77
Mar 2026	80,871	80,920	110,265	109,977	0	$91.38	$3.04
Feb 2026	70,954	70,897	64,374	63,584	594	$64.51	$3.62
Jan 2026	22,657	22,605	33,310	29,469	3,655	$60.04	$7.72
Dec 2025	0	0	0	0	0	$57.97	$4.26

Flared above 3%

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

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