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Royalty Clerk

RRC field 30007001 · District 01

Fairfield

The Fairfield field reported 27,180 barrels of oil and 12 mcf of gas in the last 12 months.

Field dossier

27,180bbl oil, last 12 months+19% vs prior year
Producing leases
91of 110 on record
Operators
24
Counties
2
Biggest operator
Premier Minerals, Inc.

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Where the field sits

fewermore

Medina County: 19 producing leasesBexar County: 72 producing leasesMedinaMedinaBexar
2 counties
Gas, last 12 months
12 mcf
Data through
Jul 2026

Wells in the Fairfield field

Every well the state's map puts on a lease of this field, and the drilling permits filed for it in the last 24 months.
Map of the wells of the Fairfield field, Texas: 564 wells and 11 recent drilling locations, in a picture about 22 miles across.
  • Drilling locations11Permits issued in the last two years
  • Producing wells453On a lease reporting production now
  • Not producing51Shut in, inactive or no lease on record
  • Plugged60The state's wellbore record says plugged

Each dot is a well on a lease the Railroad Commission lists in the Fairfield field, where its map puts it, or a drilling permit filed for the field in the last 24 months. Wells of other fields are not on this map. The picture is about 22 miles across. The white counties are the ones with a well or drilling permit of the field on the map. 27 more wells have no location on the state's map. The thin brown lines are the original land surveys; where there is room, a survey carries its abstract number, the number deeds and division orders cite. Sources: Railroad Commission of Texas well layers, drilling permit files and survey lines, US Census Bureau county outlines, town points from GeoNames (CC BY 4.0).

See the whole Texas well map

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You may show this map on any site, unchanged. Keep the credit line and its link to Royalty Clerk under the map. The picture updates by itself as the state records new wells and permits.

Download the picture (WebP)
<a href="https://royaltyclerk.com/texas/fields/fairfield-30007001"><img src="https://royaltyclerk.com/maps/field-wells/fairfield-30007001.svg" alt="Map of the wells of the Fairfield field, Texas: 564 wells and 11 recent drilling locations, in a picture about 22 miles across." width="1000" height="951" loading="lazy" style="max-width:100%;height:auto;border:0"></a>
<p style="margin:4px 0 0;font-size:14px">Map: <a href="https://royaltyclerk.com/texas/fields/fairfield-30007001">Oil and gas wells of the Fairfield field, Texas</a> by Royalty Clerk, from Railroad Commission of Texas records</p>

Five years of output in Fairfield

Oil output in the Fairfield field rose 19% over the last 12 months

27.2k bbl through Jul 2026, against 22.8k bbl a year earlier. Peak May 2025: 2,636 bbl.

Oil output in the Fairfield field rose 19% over the last 12 months27.2k bbl through Jul 2026, against 22.8k bbl a year earlier. Peak May 2025: 2,636 bbl.Oil, bbl per month01,0002,0003,000Peak 2,636 (May 25)1,85420222023202420252026
Oil output in the Fairfield field rose 19% over the last 12 months27.2k bbl through Jul 2026, against 22.8k bbl a year earlier. Peak May 2025: 2,636 bbl.Oil, bbl per month01,0002,0003,000Peak 2,636 (May 25)1,854'22'23'24'25'26

Gas output in the Fairfield field held steady over the last 12 months

12 mcf through Jul 2026, against 12 mcf a year earlier. Peak Aug 2021: 2 mcf.

Gas output in the Fairfield field held steady over the last 12 months12 mcf through Jul 2026, against 12 mcf a year earlier. Peak Aug 2021: 2 mcf.Gas, mcf per month01122Peak 2 (Aug 21)120222023202420252026
Gas output in the Fairfield field held steady over the last 12 months12 mcf through Jul 2026, against 12 mcf a year earlier. Peak Aug 2021: 2 mcf.Gas, mcf per month01122Peak 2 (Aug 21)1'22'23'24'25'26

SourceTexas Railroad Commission Production Data Query, field 30007001, through Jul 2026, file dated Oct 20, 2026.

Leases in the Fairfield field

Under each volume: change on the year before.

Showing 25 of 91, ranked by output value.

Search by lease name →

SourceTexas Railroad Commission Production Data Query.

Who operates here, and where

Operators, by oil

Premier Minerals leads

  1. Premier Minerals, Inc.1 lease8,416bbl
  2. JM Calk Operating, LLC5 leases2,968bbl
  3. 1859 Operating LLC5 leases2,932bbl
  4. Calk, Roger D.17 leases2,505bbl
  5. Mojave Resources, LLC5 leases1,255bbl
  6. Calfas Oil, LLC4 leases1,150bbl
  7. Drachen Oil Company10 leases1,146bbl
  8. Calfas Cattle & Oil, LLC3 leases1,081bbl

Counties, by oil

Medina County leads

  1. Medina County19 leases14.8kbbl
  2. Bexar County72 leases11.6kbbl

More operators

OperatorLongshot Energy LLC4OperatorK.a. Barnes Oil & Gas Oper, LLC4OperatorAAA Oil Company1OperatorCalk Oil Company3

Recent drilling permits in the Fairfield field