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Jefferson County oil and gas

Jefferson County leases reported 306.8K barrels of oil and 1.4M MCF of gas to the Texas Railroad Commission in the 12 months to Jul 2026, ranking #149 of 219 producing Texas counties by oil-equivalent volume.

Jefferson County oil + condensate (BBL per month, last 36 months)

Jefferson County gas (MCF per month, last 36 months)

Jun 2026 and Jul 2026 are provisional (lighter bars) and usually rise as late reports arrive.

Jefferson County production in brief

Jefferson County produced 306,779 barrels of oil and condensate and 1,421,298 MCF of gas in the 12 months from Aug 2025 to Jul 2026, about 0.0% of Texas oil and 0.0% of Texas gas on our county figures. Compared with the previous 12 months, oil was down 9% and gas was about flat. The highest oil month in the last three years was Aug 2023 at 40,530 barrels. The largest operators by oil-equivalent volume were HILCORP ENERGY COMPANY, BALLARD EXPLORATION COMPANY,INC. and WHITE MARLIN OPERATING CO, LLC. The top lease by oil was MCFADDIN, operated by BALLARD EXPLORATION COMPANY,INC., with 25,738 barrels. RRC issued 1 new drilling permit in Jefferson County between October 1 and Oct 14, 2026, to KINDER MORGAN TEXAS PIPELINE LLC.

Top leases, last 12 months

Lease	Operator	Field	Oil (BBL)	Gas (MCF)
MCFADDIN	BALLARD EXPLORATION COMPANY,INC.	TAYLOR BAYOU, S. (HACKBERRY 1)	25,738	257,205
KEELAND GAS UNIT	HILCORP ENERGY COMPANY	CLAUDE WATTS (YEGUA 12600)	24,965	107,557
STATE TRACT 29	BALLARD EXPLORATION COMPANY,INC.	PLEASURE ISLAND (HACKBERRY 2)	22,324	245,270
THOMAS, E., MRS. ET AL	HILCORP ENERGY COMPANY	FANNETT	18,600	20,043
GLADYS CITY	RHEACO OIL COMPANY, LTD.	SPINDLETOP	15,931	0
SONNY V	OLIPDP II, LLC	PORT ACRES (MARG-FRIO CONS.)	14,653	4,479
MCFADDIN TRUST	GEPARD ENERGY INC	CLAM LAKE	13,266	4,536
SABCO FOLTS	WHITE MARLIN OPERATING CO, LLC	LA BELLE (8600)	12,240	56,589
SUN FEE	HILCORP ENERGY COMPANY	NOME N.E. (12800)	11,246	215,169
FITZHUGH-BURRELL	FORT APACHE ENERGY, INC.	FANNETT	10,995	21,963
MCDERMOND, F.	HILCORP ENERGY COMPANY	NOME SE. (FRIO, UP)	8,193	5,473
MMK	OLIPDP II, LLC	PORT ACRES (MARG-FRIO CONS.)	7,593	7,150
SUN-HARDER A	HILCORP ENERGY COMPANY	REBEL (YEGUA)	6,294	149,263
TURNER-BOGAN	BALLARD EXPLORATION COMPANY,INC.	CONSTITUTION, SOUTH (YEGUA)	5,878	60,935
JEFFERSON LAND CO. A/C #1	MILESTONE OPERATING, INC.	LOVELLS LAKE (MARG. 2)	5,282	4,807

Top operators, last 12 months

Operator	Leases	Oil (BBL)	Gas (MCF)
HILCORP ENERGY COMPANY	60	80,505	580,075
BALLARD EXPLORATION COMPANY,INC.	17	57,001	583,268
WHITE MARLIN OPERATING CO, LLC	17	21,631	96,526
OLIPDP II, LLC	3	22,246	11,629
RHEACO OIL COMPANY, LTD.	3	21,949	0
GEPARD ENERGY INC	2	18,472	6,359
MILESTONE OPERATING, INC.	63	11,382	31,054
FORT APACHE ENERGY, INC.	1	10,995	21,963
KINGWOOD EXPLORATION LLC	12	13,051	0
S & S OPERATING COMPANY, INC.	13	11,053	0

New drilling permits this month

Issued	County	Operator	Lease	Well	Total depth (ft)	Type
2026-10-14	Jefferson	KINDER MORGAN TEXAS PIPELINE LLC	TIP-202	1	450	Drill

Monthly figures

Month	Oil (BBL)	Gas (MCF)	Leases reporting
Jul 2026 (provisional)	20,568	117,377	326
Jun 2026 (provisional)	23,611	121,206	327
May 2026	25,828	126,423	327
Apr 2026	27,868	128,313	327
Mar 2026	29,628	139,036	329
Feb 2026	25,811	125,080	329
Jan 2026	26,808	117,144	330
Dec 2025	23,195	97,043	331
Nov 2025	23,826	93,081	331
Oct 2025	26,976	118,404	331
Sep 2025	25,728	114,067	330
Aug 2025	26,932	124,124	331

Questions about Jefferson County minerals

How do I look up my lease in Jefferson County?

Find the RRC lease number on your check stub, then search it on our lease search or in the RRC Production Data Query using district and lease number. Without a number, open the RRC GIS viewer, go to Jefferson County and click the well. Step by step: how to look up your lease on RRC.

Who are the top operators in Jefferson County?

By oil-equivalent volume over the 12 months to Jul 2026: HILCORP ENERGY COMPANY (80,505 BBL oil, 580,075 MCF gas), BALLARD EXPLORATION COMPANY,INC. (57,001 BBL oil, 583,268 MCF gas) and WHITE MARLIN OPERATING CO, LLC (21,631 BBL oil, 96,526 MCF gas). The full list is in the table above.

How are royalties calculated on Jefferson County production?

A gross royalty is roughly (oil volume × oil price + gas volume × gas price) × your decimal interest. Your decimal is on your check stub or division order. County production in May 2026 was 25,828 BBL of oil; try your own lease in the royalty estimator. Severance tax and any deductions your lease allows reduce the check.

How do I sell mineral rights in Jefferson County?

Start with the production history of your lease on its page here, then compare several offers on the same basis (price per net mineral acre or a multiple of monthly royalty). Recent permits in the county (1 so far this month) can matter to buyers. See how to sell mineral rights. We are not a buyer or broker.

Own minerals in Jefferson County? Find your lease, estimate a royalty check or get the monthly county update.

Source: Texas Railroad Commission (data sets, Production Data Query). Data date: RRC Production Data Query dump, extract dated Sep 18, 2026; production through Jul 2026. Jun 2026 and Jul 2026 are provisional: operators file late and amend, so these months usually rise in later releases. Oil = crude oil + condensate (BBL); gas = gas-well gas + casinghead gas (MCF), as reported to RRC. RRC notes county-level figures are allocated estimates based on allowables and potentials. Methodology.

Source: Texas Railroad Commission drilling permit data (daily file; look up a permit in the RRC drilling permit query). Data date: RRC Drilling Permit daily file, downloaded Oct 16, 2026. Each application is listed once (latest filing); 103 applications in the file that were amended or re-filed this month but originally issued earlier are not shown as new. Application type codes are mapped to our labels; verify on RRC.