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Texas gas well

Producing

SENTINEL STATE 55-28 UNIT

Sentinel State 55-28 Unit is a gas well in Reeves County, Texas, operated by Coterra Energy Operating Co. in the Phantom (Wolfcamp) field.

1 well

554,092mcf gas, last 12 months−51% vs prior year
Operator
Coterra Energy Operating Co.
County
Reeves County
Field
Phantom (Wolfcamp)
RRC lease
08-295586

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Where it sits

This county

Reeves CountyReevesWinklerWardLovingReeves County
Reeves County
Oil, last 12 months
15,542 bbl
Gas in Jul 2026
18,198 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.

  • Sales

    Sales over the last 3 months fell to 11% of the 9 months before.

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

See why checks stop on this lease

Production by month

Gas output fell 51% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 51% over the last 12 monthsMonthly gas production and oil for SENTINEL STATE 55-28 UNIT, Aug 2023 to Jul 2026. Gas output fell 51% over the last 12 months. 554,092 mcf in the 12 months through Jul 2026, against 1,130,808 mcf in the 12 months before.Last 12 months: 554,092 mcfmcf per monthbbl per month00100k5,000200k10k300k15k400k20k500k25kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 51% over the last 12 monthsMonthly gas production and oil for SENTINEL STATE 55-28 UNIT, Aug 2023 to Jul 2026. Gas output fell 51% over the last 12 months. 554,092 mcf in the 12 months through Jul 2026, against 1,130,808 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month00100k5,000200k10k300k15k400k20k500k25kJan 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

Flaring peaked at 7.3% of the gas in Aug 2023.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
All of the gas went to a processing plant in the last 12 monthsShare of SENTINEL STATE 55-28 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. Flaring peaked at 7.3% of the gas in Aug 2023.Share of the lease’s gas by disposition code, per month0%50%100%Flared 7.3%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a processing plant in the last 12 monthsShare of SENTINEL STATE 55-28 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. Flaring peaked at 7.3% of the gas in Aug 2023.Share of gas by disposition code0%50%100%Flared 7.3%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., Aug 2023 to Oct 2025; Coterra Energy Operating Co., Nov 2025 to Jul 2026202420252026Changed Nov 2025Cimarex Energy Co.Aug 2023 to Oct 2025Coterra Energy Operating Co.Nov 2025 to now
Operators of this lease over timeCimarex Energy Co., Aug 2023 to Oct 2025; Coterra Energy Operating Co., Nov 2025 to Jul 2026202420252026Changed Nov 2025Cimarex Energy Co.Aug 2023 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 SENTINEL STATE 55-28 UNIT
API numberWell no.Status
42-389-4010415HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Transfer Crude Oil Co,llcCondensateGathers50Aug 29, 2023–
Energy Transfer Marketing & TermCondensateGathers50Jan 1, 2026–
Coterra Energy Operating Co.Gas-well gasBuys100Jan 1, 2026–
Coterra Energy Operating Co.Gas-well gasGathers100Jan 1, 2026–
Energy Trans Crude Marketing LLCCondensateGathers50Aug 29, 2023Jan 1, 2026
Cimarex Energy Co.Gas-well gasGathers100Aug 29, 2023Jan 1, 2026
Cimarex Energy Co.Gas-well gasBuys100Aug 29, 2023Jan 1, 2026

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

Who buys my oilOil price check

1,280 acres on the newest permit

Check your decimal on this lease
Permits for Sentinel State 55-28 Unit
API numberWell no.Acreson the permit
42-389-4010415H1,280

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 SENTINEL STATE 55-28 UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Coterra Energy42841918,19818,1980$80.46$2.89
Jun 2026Coterra Energy114894890$84.81$3.15
May 2026Coterra Energy18525785780$102.13$2.94
Apr 2026Coterra Energy1,5931,58260,18260,1820$100.32$2.77
Mar 2026Coterra Energy1,8491,84965,65865,6580$91.38$3.04
Feb 2026Coterra Energy1,7941,79562,31362,3130$64.51$3.62
Jan 2026Coterra Energy1,8781,86366,91966,9190$60.04$7.72
Dec 2025Coterra Energy69970921,79021,7900$57.97$4.26
Nov 2025Coterra Energy1,3811,38748,07448,0740$60.06$3.79
Oct 2025Cimarex Energy1,7331,72466,06366,0630$60.89$3.19
Sep 2025Cimarex Energy1,7461,76572,22872,2280$63.96$2.97
Aug 2025Cimarex Energy2,4222,41971,60071,6000$64.86$2.91
Jul 2025Cimarex Energy2,2402,24478,01978,0190$68.39$3.20
Jun 2025Cimarex Energy2,1102,11268,49668,4906$68.17$3.02
May 2025Cimarex Energy2,8712,85384,81884,8162$62.17$3.12
Apr 2025Cimarex Energy2,9862,99484,64184,530111$63.54$3.42
Mar 2025Cimarex Energy4,0984,11888,91088,9073$68.24$4.12
Feb 2025Cimarex Energy2,0992,07278,26778,2670$71.53$4.19
Jan 2025Cimarex Energy2,6692,65892,01092,0100$75.74$4.13
Dec 2024Cimarex Energy2,5782,58895,10095,0890$70.12$3.01
Nov 2024Cimarex Energy3,0833,087106,578106,5780$69.95$2.12
Oct 2024Cimarex Energy3,2563,257113,073113,0660$71.99$2.20
Sep 2024Cimarex Energy3,6153,623118,394118,3940$70.24$2.28
Aug 2024Cimarex Energy4,0214,042122,502122,5020$76.68$1.99
Jul 2024Cimarex Energy4,4034,416133,396133,3910$81.80$2.07
Jun 2024Cimarex Energy5,0505,011131,905131,9030$79.77$2.54
May 2024Cimarex Energy5,4785,495151,263151,2630$80.02$2.12
Apr 2024Cimarex Energy5,6105,603150,281150,2750$85.35$1.60
Mar 2024Cimarex Energy6,8876,902163,482163,4820$81.28$1.49
Feb 2024Cimarex Energy7,2907,310000$77.25$1.72
Jan 2024Cimarex Energy8,6678,624186,382185,9260$74.15$3.18
Dec 2023Cimarex Energy10,85210,846221,474221,4740$71.90$2.52
Nov 2023Cimarex Energy13,39913,405237,382237,3820$77.69$2.71
Oct 2023Cimarex Energy17,17217,174254,193254,1930$85.64$2.98
Sep 2023Cimarex Energy20,19320,198261,413261,35954$89.43$2.64
Aug 2023Cimarex Energy1,4461,40911,76110,901859$81.39$2.58

Flared above 3%

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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