CALLAHAN COUNTY REGULAR Field Activity and Well Summary

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Total wells

168
CALLAHAN COUNTY REGULAR field

Last 60 days

3
wells drilled

Prior 60 days

1
to compare against

60-day trend

+2
vs prior 60d

The CALLAHAN COUNTY REGULAR oil & gas field in Texas contains 168 wells on file.

Top operators: MERKAZ DRILLING, LLC, RYHOLLAND FIELDER, INC, and others.

Most recent well: MCFARLANE, J. W., operated by ADENRYEN, LTD. CO. — last updated August 2026.

CALLAHAN COUNTY REGULAR field coverage

Counties the CALLAHAN COUNTY REGULAR field intersects.

Menard CountyHale CountyArmstrong CountyCalhoun CountyClay CountyOrange CountyGonzales CountyFannin CountyKerr CountyRefugio CountyJim Hogg CountyDimmit CountyNolan CountyBrazos CountyJefferson CountyBell CountyBandera CountyHidalgo CountySchleicher CountyGrayson CountyCrosby CountyDelta CountyZavala CountyRockwall CountyEastland CountyDeWitt CountyAngelina CountyMcLennan CountyLamar CountyLeon CountyStonewall CountyMcMullen CountySutton CountyFort Bend CountyParker CountyKinney CountyFayette CountyBriscoe CountyHarrison CountyReagan CountyColeman CountyOchiltree CountyCrane CountyWashington CountyLynn CountyMills CountyOldham CountySabine CountyHopkins CountyHouston CountyBexar CountyUpton CountyErath CountyRandall CountyRusk CountyCoryell CountyComal CountyAransas CountyJack CountyHemphill CountyShackelford — 1 wellsSan Jacinto CountyKendall CountyWharton CountyFloyd CountyKarnes CountyKaufman CountyDuval CountyJohnson CountyFranklin CountyEdwards CountyWaller CountyMaverick CountyKleberg CountyGaines CountyMartin CountyBowie CountyAndrews CountyPotter CountyGarza CountyCaldwell CountyParmer CountyTitus CountyTerry CountyFoard CountyReal CountyCarson CountyKnox CountyHays CountyMedina CountyMotley CountyWichita CountyMidland CountyVictoria CountyTyler CountyFalls CountyPresidio CountyWillacy CountyLubbock CountyHenderson CountyWalker CountyGalveston CountyHarris CountyDawson CountyPecos CountyNacogdoches CountyGuadalupe CountyTarrant CountyJackson CountySwisher CountySterling CountyWinkler CountyFrio CountyLipscomb CountyCollingsworth CountyColorado CountyWise CountyGlasscock CountyShelby CountyComanche CountyBurnet CountyGray CountyHudspeth CountyCass CountyEllis CountyCooke CountyWilliamson CountyCochran CountyVan Zandt CountyDonley CountyJones CountyGrimes CountyIrion CountyNavarro CountyBrooks CountyDallam CountyHunt CountyMitchell CountyWood CountyChildress CountyJeff Davis CountyMontague CountyBrown CountyHaskell CountyFisher CountyConcho CountyCoke CountyPolk CountyCottle CountyYoung CountyLee CountyCherokee CountyHall CountyHood CountyArcher CountyBaylor CountySan Augustine CountyMadison CountyMilam CountyReeves CountyNueces CountyCamp CountyFreestone CountyRunnels CountyTerrell CountyDeaf Smith CountyMarion CountyLiberty CountyJasper CountyHansford CountyChambers CountyHardin CountyCollin CountyBrazoria CountyThrockmorton CountyBastrop CountyScurry CountyEctor CountyLimestone CountyDenton CountyRed River CountyMatagorda CountyHardeman CountyPalo Pinto CountyLive Oak CountySherman CountyUvalde CountyBailey CountyCulberson CountyAtascosa CountyWilson CountyStarr CountyDallas CountyKimble CountyMcCulloch CountyCrockett CountyHill CountyKent CountyEl Paso CountyLoving CountyDickens CountyLa Salle CountyLamb CountyAustin CountyHutchinson CountyVal Verde CountySmith CountyRobertson CountyGillespie CountyKing CountyTom Green CountyYoakum CountySomervell CountyKenedy CountyBorden CountySan Saba CountyBurleson CountyBee CountyTrinity CountyCastro CountyBrewster CountyGregg CountyWard CountyWilbarger CountyHamilton CountyStephens CountyLavaca CountyBosque CountyGoliad CountyRoberts CountyCallahan — 167 wellsRains CountyMorris CountyLampasas CountyUpshur CountyWheeler CountySan Patricio CountyMoore CountyWebb CountyBlanco CountyNewton CountyHockley CountyPanola CountyAnderson CountyCameron CountyMontgomery CountyLlano CountyMason CountyTaylor CountyHartley CountyJim Wells CountyZapata CountyTravis CountyHoward County
< 11+1+167+167+

Recent wells

Well Name County Last activity Updates Operator API
MCFARLANE, J. W. Callahan 2026-08-16 7 ADENRYEN, LTD. CO. 05937046
RAMSEY, CAL -B- Callahan 2026-07-01 2 M2 SQUARED OPERATING, LLC 05936417
RAMSEY, CAL -B- Callahan 2026-07-01 3 M2 SQUARED OPERATING, LLC 05980541
RAMSEY, CAL Callahan 2026-04-01 M2 SQUARED OPERATING, LLC 05932146
SNYDER-SEALES Callahan 2026-01-13 2 TOM-TOM OPERATING, LLC 05937195
WYLIE A Callahan 2025-08-22 2 HASKIT, KENDALL 05937200
DAVIS, J. T. ESTATE Callahan 2025-05-27 4 WYLIE BROS. PROD. & DRGL. CO,INC 05930599
MCFARLANE, J. W. Callahan 2024-12-09 2 ADENRYEN, LTD. CO. 05907215
MCFARLANE, J. W. Callahan 2024-11-18 2 ADENRYEN, LTD. CO. 05932910
MCFARLANE, J. W. Callahan 2024-11-18 2 ADENRYEN, LTD. CO. 05934601

Top Operators in the CALLAHAN COUNTY REGULAR field by total wells

MERKAZ DRILLING, LLC34RYHOLLAND FIELDER, INC16ADENRYEN, LTD. CO.8HASKIT, KENDALL8C & L OIL COMPANY7DEEP CREEK EXPLORATION LLC7QUAIL WELL SERVICE, INC.6MIDSCO5WYLIE BROS. PROD. & DRGL. CO,INC5D-BAR LEASING, INC.4

Operators: Merkaz Drilling, Llc, Ryholland Fielder, Inc, Adenryen, Ltd. Co., Haskit, Kendall, C & L Oil Company, Deep Creek Exploration Llc, Quail Well Service, Inc., Midsco, Wylie Bros. Prod. & Drgl. Co,inc, D-Bar Leasing, Inc..

Counties Intersected by the CALLAHAN COUNTY REGULAR field

Callahan167Shackelford1
Callahan
Shackelford

Other Major Fields in Texas most active by total wells

Compare the CALLAHAN COUNTY REGULAR field against the other busiest oil and gas fields in Texas: