Texas oil lease

Producing

HEIDELBERG 30-31 J

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

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

2 wells

258,829bbl oil, since Jan 2026

Operator: Diamondback E&P LLC
County: Martin County
Field: Spraberry (Trend Area)
RRC lease: 08-64385

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Where it sits

This county

Martin County

Gas, since Jan 2026: 373,578 mcf
Oil in Jul 2026: 20,833 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 fell 39% since Jan 2026

Oil (bars)
Gas (line)

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

95% of the gas went to a transmission line in the 7 months reported

Flaring peaked at 10.9% 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)
95% · 355,466 mcf
Lease fuel (1)
4.1% · 15,348 mcf
Flared (4)
0.7% · 2,764 mcf

0.7% of the gas flared in the 7 months reported. One month above 3%.

2 wells on this lease

Wells on HEIDELBERG 30-31 J
API number	Well no.	Status
42-317-46849	4LS	Active
42-317-46862	4WB	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	Jul 31, 2025
Etc North Permian Midstream LLC	Casinghead gas	Buys	100	Jul 31, 2025
Energy Transfer Company	Casinghead gas	Gathers	100	Jul 31, 2025

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

Who buys my oil Oil price check

640.66 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 J
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-317-46862	4WB	Jul 17, 2025	Sep 7, 2025	640.66	Horizontal, allocation
42-317-46849	4LS	Jun 20, 2025	Jul 31, 2025	640.66	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

7 months, newest first

Ledger for HEIDELBERG 30-31 J
Month	Oil producedbbl	Oil soldbbl	Gas producedmcf	Gas soldmcf, codes 2+3	Flaredmcf	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026	20,833	20,829	49,121	46,422	0	$80.46	$2.89
Jun 2026	24,848	24,851	43,024	39,645	746	$84.81	$3.15
May 2026	34,885	34,894	51,282	48,388	254	$102.13	$2.94
Apr 2026	45,732	45,727	68,135	65,295	210	$100.32	$2.77
Mar 2026	60,363	60,416	76,993	74,314	0	$91.38	$3.04
Feb 2026	63,459	63,381	77,307	74,572	711	$64.51	$3.62
Jan 2026	8,709	8,689	7,716	6,830	843	$60.04	$7.72

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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