Texas oil lease

Producing

MASTEN UNIT

Name: MASTEN UNIT monthly oil and gas production, Cochran County, Texas
Creator: Texas Railroad Commission

Masten Unit is an oil lease in Cochran County, Texas, operated by Talis Energy Inc. in the Levelland field.

58 wells

13,117bbl oil, last 12 months−7% vs prior year

Operator: Talis Energy Inc.
County: Cochran County
Field: Levelland
RRC lease: 8A-67253

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Where it sits

This county

Cochran County

Gas, last 12 months: 201 mcf
Oil in Jun 2026: 1,351 bbl

Production by month

Oil output fell 7% over the last 12 months

Jul 2026 was not reported.

Oil (bars)
Gas (line)
Last 12 months

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Mar 2025 the lease's gas goes to a transmission line instead of a processing plant

Processing plant (3)
Transmission line (2)

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Transmission line (2)
51% · 3,448 mcf
Processing plant (3)
49% · 3,347 mcf

Who has run this lease

The operator changed 3 times, most recently in Jul 2025

Talis Energy Inc. Jul 2025 to Jun 2026
Oilwell Operators, Inc. Jul 2023 to Jun 2025
RMB Operating LLC May 2020 to Jun 2023
Steward Energy II, LLC Jan 2020 to Apr 2020

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

58 wells on this lease

Wells on MASTEN UNIT
API number	Well no.	Status
42-079-00033	J 9	Active
42-079-01293	K 1	Active
42-079-01294	K 2	Active
42-079-01297	A 11	Active
42-079-01298	J 14	Shut-in
42-079-01299	J 15	Active
42-079-01300	J 16	Active
42-079-01302	H 2	Active
42-079-01303	H 3S	Active
42-079-01547	J 8	Active
42-079-01576	B 1	Active
42-079-01577	C 1	Active
42-079-01578	D 1	Active
42-079-01580	G 2	Active
42-079-01581	J 1R	Active
42-079-01582	A 1	Active
42-079-01583	A 2	Active
42-079-01585	A 3	Active
42-079-01586	A 4	Active
42-079-01593	J 13	Active
42-079-01774	J 10	Active
42-079-30404	A 13	Active
42-079-30555	B 2	Active
42-079-30562	D 3	Active
42-079-30564	C 2	Active
42-079-30778	J 5	Active
42-079-30780	J 18	Active
42-079-30956	C 3	Active
42-079-30957	D 4	Active
42-079-30971	A 14	Active
42-079-30984	A 16	Active
42-079-30985	A 15	Active
42-079-30986	A 18	Active
42-079-30987	A 17	Active
42-079-32754	A 19	Active
42-079-32755	D 2	Active
42-079-32756	J 19	Active
42-079-32757	J 20	Active
42-079-32758	B 4	Active
42-079-32759	D 6	Active
42-079-32760	D 7	Active
42-079-32761	A 5R	Active
42-079-32762	C 4	Active
42-079-32770	J 11R	Active
42-079-32771	J 7R	Active
42-079-32772	J 3R	Active
42-079-32773	J 2R	Active
42-079-32777	D 5	Active
42-079-32778	A 7R	Active
42-079-32779	J 22	Active
42-079-32780	J 17R	Active
42-079-32781	J 21	Active
42-079-32782	20	Active
42-079-32783	A 21	Active
42-079-32784	B 3R	Shut-in
42-079-33011	H 5B	Active
42-079-33337	C 5	Active
42-079-33338	A 22	Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
Company	Product	Role	Share%	From	Until
Bml, Inc. B	Oil	Gathers	100	Sep 1, 2026	–
Targa Midstream Services LLC	Casinghead gas	Buys	100	Jul 1, 2025	–
Targa Midstream Services LLC	Casinghead gas	Gathers	100	Oct 1, 2011	–
Phillips 66 Company	Oil	Gathers	100	Jul 1, 2023	Sep 1, 2026
Targa Midstream Services LLC	Casinghead gas	Buys	100	Oct 1, 2011	Jul 1, 2025
Sentinel Transportation, LLC	Oil	Gathers	100	Feb 1, 2007	Jul 1, 2023

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

Who buys my oil Oil price check

2,526.64 acres on the newest permit

A pooling certificate was filed

The wells on this lease state different acreage

The permits state between 177.84 and 2,526.64 acres.

63 wells are listed on this lease

Permits for Masten Unit
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-079-33338	A 22	Jan 5, 2016	Mar 11, 2016	2,526.64	Vertical
42-079-33337	C 5	Dec 30, 2015	Feb 25, 2016	2,526.64	Vertical
42-079-33011	H 5B	Jun 21, 2001	Nov 6, 2001	2,526	Horizontal
42-079-32784	B 3R	Mar 23, 1994	Aug 7, 1994	177.84	Vertical
42-079-32781	J 21	Mar 22, 1994	Aug 3, 1994	1,656.10	Vertical
42-079-32782	20	Mar 22, 1994	Aug 2, 1994	711.36	Vertical
42-079-32782	A 20	Mar 22, 1994	Aug 2, 1994	711.36	Vertical
42-079-32783	A 21	Mar 22, 1994	Aug 1, 1994	711.36	Vertical
42-079-32777	D 5	Mar 16, 1994	Jul 16, 1994	306	Vertical
42-079-32778	A 7R	Mar 16, 1994	Apr 15, 1994	711.36	Vertical
42-079-32779	J 22	Mar 16, 1994	Apr 8, 1994	1,656.10	Vertical
42-079-32780	J 17R	Mar 16, 1994	Oct 13, 1994	1,656.10	Vertical

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for MASTEN UNIT
Month	Operator	Oil producedbbl	Oil soldbbl	Gas producedmcf	Gas soldmcf, codes 2+3	Flaredmcf	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026No report	No report filed	–	–	–	–	–	$80.46	$2.89
Jun 2026Talis Energy	Talis Energy Inc.	1,351	1,627	0	0	0	$84.81	$3.15
May 2026Talis Energy	Talis Energy Inc.	1,281	1,131	0	0	0	$102.13	$2.94
Apr 2026Talis Energy	Talis Energy Inc.	1,561	1,454	0	0	0	$100.32	$2.77
Mar 2026Talis Energy	Talis Energy Inc.	1,339	1,312	0	0	0	$91.38	$3.04
Feb 2026Talis Energy	Talis Energy Inc.	989	1,299	0	0	0	$64.51	$3.62
Jan 2026Talis Energy	Talis Energy Inc.	1,141	997	0	0	0	$60.04	$7.72
Dec 2025Talis Energy	Talis Energy Inc.	1,303	1,621	133	133	0	$57.97	$4.26
Nov 2025Talis Energy	Talis Energy Inc.	1,123	651	68	68	0	$60.06	$3.79
Oct 2025Talis Energy	Talis Energy Inc.	940	1,019	0	0	0	$60.89	$3.19
Sep 2025Talis Energy	Talis Energy Inc.	967	819	0	0	0	$63.96	$2.97
Aug 2025Talis Energy	Talis Energy Inc.	1,122	1,172	0	0	0	$64.86	$2.91
Jul 2025Talis Energy	Talis Energy Inc.	0	0	0	0	0	$68.39	$3.20
Jun 2025Oilwell Operators,	Oilwell Operators, Inc.	1,339	1,338	438	438	0	$68.17	$3.02
May 2025Oilwell Operators,	Oilwell Operators, Inc.	1,506	2,298	274	274	0	$62.17	$3.12
Apr 2025Oilwell Operators,	Oilwell Operators, Inc.	566	188	446	446	0	$63.54	$3.42
Mar 2025Oilwell Operators,	Oilwell Operators, Inc.	1,146	674	86	86	0	$68.24	$4.12
Feb 2025Oilwell Operators,	Oilwell Operators, Inc.	197	507	863	863	0	$71.53	$4.19
Jan 2025Oilwell Operators,	Oilwell Operators, Inc.	1,491	1,337	1,413	1,413	0	$75.74	$4.13
Dec 2024Oilwell Operators,	Oilwell Operators, Inc.	1,348	1,513	790	790	0	$70.12	$3.01
Nov 2024Oilwell Operators,	Oilwell Operators, Inc.	1,316	1,018	298	298	0	$69.95	$2.12
Oct 2024Oilwell Operators,	Oilwell Operators, Inc.	1,666	1,657	0	0	0	$71.99	$2.20
Sep 2024Oilwell Operators,	Oilwell Operators, Inc.	1,700	1,847	1,071	1,071	0	$70.24	$2.28
Aug 2024Oilwell Operators,	Oilwell Operators, Inc.	1,867	1,680	915	915	0	$76.68	$1.99
Jul 2024Oilwell Operators,	Oilwell Operators, Inc.	1,527	1,689	1,096	1,096	0	$81.80	$2.07
Jun 2024Oilwell Operators,	Oilwell Operators, Inc.	1,257	1,645	1,676	1,676	0	$79.77	$2.54
May 2024Oilwell Operators,	Oilwell Operators, Inc.	1,715	1,400	1,799	1,799	0	$80.02	$2.12
Apr 2024Oilwell Operators,	Oilwell Operators, Inc.	2,118	1,911	3,891	3,891	0	$85.35	$1.60
Mar 2024Oilwell Operators,	Oilwell Operators, Inc.	2,241	2,389	1,180	1,180	0	$81.28	$1.49
Feb 2024Oilwell Operators,	Oilwell Operators, Inc.	2,922	2,899	2,661	2,661	0	$77.25	$1.72
Jan 2024Oilwell Operators,	Oilwell Operators, Inc.	1,379	1,371	2,163	2,163	0	$74.15	$3.18
Dec 2023Oilwell Operators,	Oilwell Operators, Inc.	2,054	2,387	1,674	1,674	0	$71.90	$2.52
Nov 2023Oilwell Operators,	Oilwell Operators, Inc.	2,243	1,868	3,358	3,358	0	$77.69	$2.71
Oct 2023Oilwell Operators,	Oilwell Operators, Inc.	2,064	2,184	466	466	0	$85.64	$2.98
Sep 2023Oilwell Operators,	Oilwell Operators, Inc.	962	1,486	2,970	2,970	0	$89.43	$2.64
Aug 2023Oilwell Operators,	Oilwell Operators, Inc.	1,765	1,528	1,087	1,087	0	$81.39	$2.58

No report filed

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

How to check your stub against this lease

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Nearby

Leases within 10 km

MASTEN
1,503 bbl · 0.9 km
MAGNUM LEVELLAND UNIT
2,248 bbl · 1.2 km
MASTEN -J-
170 mcf · 1.8 km
MASTEN, F. O. "A"
632 bbl · 1.9 km
HUGHES-SMITH
1,470 bbl · 1.9 km
MASTEN, F. O. "B"
632 bbl · 1.9 km
XIT UNIT
57,990 bbl · 2.4 km
MASTEN "C"
1,390 bbl · 2.4 km
NICEWARNER
233 bbl · 2.5 km
COFFMAN
4,319 bbl · 2.5 km

Drilling permits within 10 km

IKE CLANTON C #3H
new drill · horizontal · Manzano, LLC · Cochran County · 7.7 km
Permit 0909542 · Aug 1, 2025
BUFFALO BILL B #1H
new drill · horizontal · Manzano, LLC · Cochran County · 8.5 km
Permit 0902219 · Aug 28, 2024
BLACK JACK #1H
new drill · horizontal · Manzano, LLC · Cochran County · 10 km
Permit 0901658 · Aug 2, 2024
BELLE STARR #1H
new drill · horizontal · Manzano, LLC · Cochran County · 9.6 km
Permit 0901183 · Jul 16, 2024
IKE CLANTON 'B' #2H
new drill · horizontal · Manzano, LLC · Cochran County · 8.1 km
Permit 0896798 · Jan 24, 2024

Is your check right?

Where it sits

Production by month

Oil output fell 7% over the last 12 months

Where the gas went

Since Mar 2025 the lease's gas goes to a transmission line instead of a processing plant

Who has run this lease

The operator changed 3 times, most recently in Jul 2025

58 wells on this lease

Buyers and gatherers

2,526.64 acres on the newest permit

Estimate your royalty

36 months, newest first

Do your checks match this lease?

Nearby

This lease belongs to

Talis Energy Inc. in Cochran County

Levelland field

Leases within 10 km

Drilling permits within 10 km