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Texas gas well

Producing

GREATHOUSE C21-6 UNIT

Greathouse C21-6 Unit is a gas well in Reeves County, Texas, operated by Coterra Energy Operating Co. in the Phantom (Wolfcamp) field.

1 well

176,724mcf gas, last 12 months−17% vs prior year
Operator
Coterra Energy Operating Co.
County
Reeves County
Field
Phantom (Wolfcamp)
RRC lease
08-283103

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Where it sits

This county

Reeves CountyReevesWinklerWardLovingReeves County
Reeves County
Oil, last 12 months
7,561 bbl
Gas in Jul 2026
13,969 mcf

Checks stopped on this lease?

  • Operator

    Operator changed: Coterra Energy Operating Co. took over from Cimarex Energy Co. in Nov 2025.

  • P-5

    The previous operator's P-5 registration is listed as delinquent (last P-5 filed Jul 8, 2025).

  • Buyer

    Buyer changed: COTERRA ENERGY OPERATING CO. replaced CIMAREX ENERGY CO. as the buyer of this lease's gas from gas wells on Jan 1, 2026.

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

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Production by month

Gas output fell 17% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 17% over the last 12 monthsMonthly gas production and oil for GREATHOUSE C21-6 UNIT, Aug 2023 to Jul 2026. Gas output fell 17% over the last 12 months. 176,724 mcf in the 12 months through Jul 2026, against 212,836 mcf in the 12 months before.Last 12 months: 176,724 mcfmcf per monthbbl per month005,00025010k50015k75020k1,00025k1,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 17% over the last 12 monthsMonthly gas production and oil for GREATHOUSE C21-6 UNIT, Aug 2023 to Jul 2026. Gas output fell 17% over the last 12 months. 176,724 mcf in the 12 months through Jul 2026, against 212,836 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month005,00025010k50015k75020k1,00025k1,250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

All of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Flared (4)
All of the gas went to a processing plant in the last 12 monthsShare of GREATHOUSE C21-6 UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a processing plant in the last 12 monthsShare of GREATHOUSE C21-6 UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Who has run this lease

The operator changed once, most recently in Nov 2025

Operators of this lease over timeCimarex Energy Co., Jan 2020 to Oct 2025; Coterra Energy Operating Co., Nov 2025 to Jul 20262020202120222023202420252026Changed Nov 2025Cimarex Energy Co.Jan 2020 to Oct 2025Coterra Energy Operating Co.Nov 2025 to now
Operators of this lease over timeCimarex Energy Co., Jan 2020 to Oct 2025; Coterra Energy Operating Co., Nov 2025 to Jul 20262020202120222023202420252026Changed Nov 2025Cimarex Energy Co.Jan 2020 to Oct 2025Coterra Energy Operating Co.Nov 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on GREATHOUSE C21-6 UNIT
API numberWell no.Status
42-389-357393HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Transfer Marketing & TermCondensateGathers100Jan 1, 2026–
Coterra Energy Operating Co.Gas-well gasBuys100Jan 1, 2026–
Coterra Energy Operating Co.Gas-well gasGathers100Jan 1, 2026–
Eastex Crude CompanyCondensateGathers50Aug 29, 2017Jan 1, 2026
Energy Transfer Marketing & TermCondensateGathers50Dec 1, 2022Jan 1, 2026
Cimarex Energy Co.Gas-well gasGathers100Aug 29, 2017Jan 1, 2026
Cimarex Energy Co.Gas-well gasBuys100Aug 29, 2017Jan 1, 2026
Sunoco Ptnrs. Mktg.&terminals LPCondensateGathers50Aug 29, 2017Dec 1, 2022

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

Who buys my oilOil price check

420 acres on the newest permit

Check your decimal on this lease
Permits for Greathouse C21-6 Unit
API numberWell no.Acreson the permit
42-389-357393H420

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

What Devon Energy Corporation told investors it received

Coterra Energy Operating Co. is linked to Devon Energy Corporation (CTRA).
Realized prices reported by Devon Energy Corporation
QuarterOil$ per bblFiling
Q2 2026$95.10SEC filing
Q1 2026$70.79SEC filing
Q3 2025$64.10SEC filing
Q2 2025$62.80SEC filing
Q1 2025$69.73SEC filing
Q3 2024$74.04SEC filing

SourceDevon Energy Corporation quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for GREATHOUSE C21-6 UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Coterra Energy73268213,96913,9690$80.46$2.89
Jun 2026Coterra Energy44044514,06214,0620$84.81$3.15
May 2026Coterra Energy55357113,29313,2930$102.13$2.94
Apr 2026Coterra Energy68669015,06515,0650$100.32$2.77
Mar 2026Coterra Energy69266914,97014,9700$91.38$3.04
Feb 2026Coterra Energy54354814,07814,0780$64.51$3.62
Jan 2026Coterra Energy73275215,24915,2490$60.04$7.72
Dec 2025Coterra Energy75774015,78015,7800$57.97$4.26
Nov 2025Coterra Energy60859913,98213,9820$60.06$3.79
Oct 2025Cimarex Energy52253314,95714,9570$60.89$3.19
Sep 2025Cimarex Energy58860314,76814,7680$63.96$2.97
Aug 2025Cimarex Energy70867216,55116,5510$64.86$2.91
Jul 2025Cimarex Energy47249817,74017,7400$68.39$3.20
Jun 2025Cimarex Energy70372916,93116,9310$68.17$3.02
May 2025Cimarex Energy93989918,18818,1880$62.17$3.12
Apr 2025Cimarex Energy69974017,73217,7320$63.54$3.42
Mar 2025Cimarex Energy80879817,80717,8070$68.24$4.12
Feb 2025Cimarex Energy63362616,48816,4880$71.53$4.19
Jan 2025Cimarex Energy91990418,05718,0570$75.74$4.13
Dec 2024Cimarex Energy84686718,69518,6950$70.12$3.01
Nov 2024Cimarex Energy81481217,11417,1140$69.95$2.12
Oct 2024Cimarex Energy85181518,19718,1970$71.99$2.20
Sep 2024Cimarex Energy64866416,81416,8140$70.24$2.28
Aug 2024Cimarex Energy76877219,07319,0730$76.68$1.99
Jul 2024Cimarex Energy79484319,00419,0040$81.80$2.07
Jun 2024Cimarex Energy92291019,26619,2660$79.77$2.54
May 2024Cimarex Energy97997220,25520,2550$80.02$2.12
Apr 2024Cimarex Energy96896919,21819,2180$85.35$1.60
Mar 2024Cimarex Energy1,0741,05718,89018,8900$81.28$1.49
Feb 2024Cimarex Energy97397418,79318,7930$77.25$1.72
Jan 2024Cimarex Energy87289817,02917,0290$74.15$3.18
Dec 2023Cimarex Energy1,0631,02619,23119,2310$71.90$2.52
Nov 2023Cimarex Energy94299117,78117,653128$77.69$2.71
Oct 2023Cimarex Energy1,05999620,39920,38811$85.64$2.98
Sep 2023Cimarex Energy96496420,15720,1570$89.43$2.64
Aug 2023Cimarex Energy83186119,44919,4490$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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Nearby

This lease belongs to

OperatorCoterra Energy Operating Co.FieldPhantom (Wolfcamp)CountyReeves County

Coterra Energy Operating Co. in Reeves County

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Phantom (Wolfcamp) field

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