Texas oil lease

Producing

WEIR-RAMBIE

Name: WEIR-RAMBIE monthly oil and gas production, Bexar County, Texas
Creator: Texas Railroad Commission

Weir-Rambie is an oil lease in Bexar County, Texas, operated by Calfas Oil, LLC in the Somerset field.

10 wells

129bbl oil, last 12 months−25% vs prior year

Operator: Calfas Oil, LLC
County: Bexar County
Field: Somerset
RRC lease: 01-09341

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Where it sits

This county

Bexar County

Oil in Jul 2026: 6 bbl
Reporting since: Jan 2020

Production by month

Oil output fell 25% over the last 12 months

Oil (bars)
Last 12 months

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

Who has run this lease

The operator changed once, most recently in Feb 2024

Calfas Oil, LLC Feb 2024 to now
Everett Oil, Inc. Jan 2020 to Jan 2024

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

10 wells on this lease

Wells on WEIR-RAMBIE
API number	Well no.	Status
42-029-33834	4	Active
42-029-33835	1	Active
42-029-33838	3	Active
42-029-33839	2	Active
42-029-35752	5	Active
42-029-35753	6	Active
42-029-36256	10	Active
42-029-36257	8	Active
42-029-36258	7	Active
42-029-36259	9	Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
Company	Product	Role	Share%	From	Until
Dorado Oil Company	Oil	Gathers	50	Aug 17, 2021	–
Shell Trading (Us) Company	Oil	Gathers	50	Feb 16, 2024	–
Ace Gathering, Inc.	Oil	Gathers	50	Aug 17, 2021	Feb 16, 2024
Dorado Oil Company	Oil	Gathers	100	Dec 1, 2020	Aug 17, 2021
First River Energy, LLC	Oil	Gathers	100	Oct 1, 2016	Dec 1, 2020

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

Who buys my oil Oil price check

102 acres on the newest permit

10 wells are listed on this lease

Permits for Weir-Rambie
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-029-36256	10	Jan 15, 1985	Mar 27, 1985	102	Vertical
42-029-36257	8	Jan 15, 1985	Mar 25, 1985	102	Vertical
42-029-36258	7	Jan 15, 1985	Mar 26, 1985	102	Vertical
42-029-36259	9	Jan 15, 1985	Mar 26, 1985	102	Vertical
42-029-35752	5	Sep 6, 1984	Dec 18, 1984	102	Vertical
42-029-35753	6	Sep 6, 1984	Dec 18, 1984	102	Vertical
42-029-33834	4	Aug 26, 1983	May 11, 1984	102	Vertical
42-029-33835	1	Aug 26, 1983	Nov 23, 1983	102	Vertical
42-029-33838	3	Aug 26, 1983	May 11, 1984	102	Vertical
42-029-33839	2	Aug 26, 1983	Sep 25, 1983	102	Vertical

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

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36 months, newest first

Ledger for WEIR-RAMBIE
Month	Operator	Oil producedbbl	Oil soldbbl	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026Calfas Oil,	Calfas Oil, LLC	6	0	$80.46	$2.89
Jun 2026Calfas Oil,	Calfas Oil, LLC	11	0	$84.81	$3.15
May 2026Calfas Oil,	Calfas Oil, LLC	11	0	$102.13	$2.94
Apr 2026Calfas Oil,	Calfas Oil, LLC	15	147	$100.32	$2.77
Mar 2026Calfas Oil,	Calfas Oil, LLC	19	0	$91.38	$3.04
Feb 2026Calfas Oil,	Calfas Oil, LLC	27	0	$64.51	$3.62
Jan 2026Calfas Oil,	Calfas Oil, LLC	26	0	$60.04	$7.72
Dec 2025Calfas Oil,	Calfas Oil, LLC	1	0	$57.97	$4.26
Nov 2025Calfas Oil,	Calfas Oil, LLC	1	0	$60.06	$3.79
Oct 2025Calfas Oil,	Calfas Oil, LLC	1	0	$60.89	$3.19
Sep 2025Calfas Oil,	Calfas Oil, LLC	10	0	$63.96	$2.97
Aug 2025Calfas Oil,	Calfas Oil, LLC	1	0	$64.86	$2.91
Jul 2025Calfas Oil,	Calfas Oil, LLC	16	0	$68.39	$3.20
Jun 2025Calfas Oil,	Calfas Oil, LLC	15	0	$68.17	$3.02
May 2025Calfas Oil,	Calfas Oil, LLC	3	0	$62.17	$3.12
Apr 2025Calfas Oil,	Calfas Oil, LLC	10	143	$63.54	$3.42
Mar 2025Calfas Oil,	Calfas Oil, LLC	11	0	$68.24	$4.12
Feb 2025Calfas Oil,	Calfas Oil, LLC	11	0	$71.53	$4.19
Jan 2025Calfas Oil,	Calfas Oil, LLC	7	0	$75.74	$4.13
Dec 2024Calfas Oil,	Calfas Oil, LLC	37	0	$70.12	$3.01
Nov 2024Calfas Oil,	Calfas Oil, LLC	13	0	$69.95	$2.12
Oct 2024Calfas Oil,	Calfas Oil, LLC	14	0	$71.99	$2.20
Sep 2024Calfas Oil,	Calfas Oil, LLC	2	0	$70.24	$2.28
Aug 2024Calfas Oil,	Calfas Oil, LLC	32	0	$76.68	$1.99
Jul 2024Calfas Oil,	Calfas Oil, LLC	31	145	$81.80	$2.07
Jun 2024Calfas Oil,	Calfas Oil, LLC	6	0	$79.77	$2.54
May 2024Calfas Oil,	Calfas Oil, LLC	6	0	$80.02	$2.12
Apr 2024Calfas Oil,	Calfas Oil, LLC	72	0	$85.35	$1.60
Mar 2024Calfas Oil,	Calfas Oil, LLC	62	0	$81.28	$1.49
Feb 2024Calfas Oil,	Calfas Oil, LLC	0	0	$77.25	$1.72
Jan 2024Everett Oil,	Everett Oil, Inc.	0	0	$74.15	$3.18
Dec 2023Everett Oil,	Everett Oil, Inc.	0	0	$71.90	$2.52
Nov 2023Everett Oil,	Everett Oil, Inc.	0	0	$77.69	$2.71
Oct 2023Everett Oil,	Everett Oil, Inc.	0	0	$85.64	$2.98
Sep 2023Everett Oil,	Everett Oil, Inc.	0	0	$89.43	$2.64
Aug 2023Everett Oil,	Everett Oil, Inc.	0	0	$81.39	$2.58

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

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