Skip to content
Royalty Clerk

Texas county · RRC district 04

Duval County

Duval County reported 439,604 barrels of oil and 3.5 million mcf of gas in the last 12 months. That ranks 100th of 224 Texas counties by oil.

County dossier

439,604bbl oil, last 12 months−10% vs prior year
Producing leases
346of 976 on record
Operators
57
Fields
149
Top operator
Killam Oil Co., Ltd.

Own minerals in Duval County?

Check my statement

Where it sits

This county

Duval CountyDuvalJim WellsDuval County
Duval County · RRC district 04
Gas, last 12 months
3,534,090 mcf
Share of Texas oil
<0.1%
Data through
Jul 2026
Top field
Rosita, NW (Wilcox Cons.)

Five years of output in Duval County

Oil output in Duval County fell 10% over the last 12 months

440k bbl through Jul 2026, against 490k bbl a year earlier. Peak Dec 2021: 62.6k bbl.

Oil output in Duval County fell 10% over the last 12 months440k bbl through Jul 2026, against 490k bbl a year earlier. Peak Dec 2021: 62.6k bbl.Oil, bbl per month025k50k75kPeak 62.6k (Dec 21)36.4k20222023202420252026
Oil output in Duval County fell 10% over the last 12 months440k bbl through Jul 2026, against 490k bbl a year earlier. Peak Dec 2021: 62.6k bbl.Oil, bbl per month025k50k75kPeak 62.6k (Dec 21)36.4k'22'23'24'25'26

Gas output in Duval County rose 5% over the last 12 months

3.5M mcf through Jul 2026, against 3.3M mcf a year earlier. Peak May 2022: 444k mcf.

Gas output in Duval County rose 5% over the last 12 months3.5M mcf through Jul 2026, against 3.3M mcf a year earlier. Peak May 2022: 444k mcf.Gas, mcf per month0100k200k300k400k500kPeak 444k (May 22)241k20222023202420252026
Gas output in Duval County rose 5% over the last 12 months3.5M mcf through Jul 2026, against 3.3M mcf a year earlier. Peak May 2022: 444k mcf.Gas, mcf per month0100k200k300k400k500kPeak 444k (May 22)241k'22'23'24'25'26

SourceTexas Railroad Commission Production Data Query, county totals, through Jul 2026, file dated Sep 18, 2026.

The biggest leases in Duval County

Under each volume: change on the year before.

Showing 25 of 150 (the 150 largest of 346), ranked by output value.

Every lease in Duval County, A to Z →

SourceTexas Railroad Commission Production Data Query.

Who runs the leases, and what they produce

Operators in Duval County, by oil

Killam Oil Co. leads

  1. Killam Oil Co., Ltd.35 leases102kbbl
  2. Hilcorp Energy Company46 leases84.9kbbl
  3. Aurora Resources Corporation4 leases46.3kbbl
  4. Mountain V Texas, LLC5 leases19.1kbbl
  5. McGowan Working Partners, Inc.2 leases18kbbl
  6. Caribbean Energy LLC II17 leases16.2kbbl
  7. 3D Oil Company, LLC8 leases16.2kbbl
  8. Awp Operating Company3 leases15.4kbbl

Fields in Duval County, by oil

Conoco Driscoll leads

  1. Conoco Driscoll1 lease · District 04 · Field 2017800141.2kbbl
  2. Govt. Wells, N.18 leases · District 04 · Field 3610800129.7kbbl
  3. Govt. Wells, South10 leases · District 04 · Field 3611200127.7kbbl
  4. Lundell7 leases · District 04 · Field 5575500127.7kbbl
  5. Dinn2 leases · District 04 · Field 2490200121.7kbbl
  6. Eagle Hill2 leases · District 04 · Field 2708000119.1kbbl
  7. Charamousca, South2 leases · District 04 · Field 1711200117.4kbbl
  8. Kohler2 leases · District 04 · Field 5008400117.1kbbl

More operators here

Operator3D Oil Company, LLC8OperatorProline Energy Resources Inc5OperatorAwp Operating Company3OperatorTrans-Tex Operating LLC2
Search this county →

Recent drilling permits in Duval County