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Royalty Clerk

Texas gas well · RRC district 04 · Lease 159880

Producing

MCCAMPBELL, E.A.

McCampbell, E.a. is a gas well in Zapata County, Texas, operated by Altalay STX LLC in the Alworth(wilcox, Hinnant 1st) field. The Railroad Commission shows 18,045 mcf of gas in the 12 months through Jul 2026.

Gas well dossier · 1 well

18,045mcf gas, last 12 months−14% vs prior year
Operator
Altalay STX LLC
County
Zapata County
Field
Alworth(wilcox, Hinnant 1st)
RRC lease
04-159880

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Where it sits

This county

Zapata CountyZapataJim HoggZapata County
Zapata County · RRC district 04Open Zapata County →
Gas in Jul 2026
1,458 mcf
Reporting to the state
since Jan 2020
Wells
1
Data through
Jul 2026

Production

Month by month, from the state record

What the Railroad Commission says this gas well produced. Oil is in barrels (bbl). Gas is in thousand cubic feet (mcf).

Gas output fell 14% over the last 12 months

18,045 mcf in the 12 months through Jul 2026, against 21,098 mcf in the 12 months before.

  • Gas (bars, left axis)
  • Last 12 months
Gas output fell 14% over the last 12 monthsMonthly gas production for MCCAMPBELL, E.A., Aug 2023 to Jul 2026. Gas output fell 14% over the last 12 months. 18,045 mcf in the 12 months through Jul 2026, against 21,098 mcf in the 12 months before.Last 12 months: 18,045 mcfmcf per month01,0002,0003,0004,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 14% over the last 12 monthsMonthly gas production for MCCAMPBELL, E.A., Aug 2023 to Jul 2026. Gas output fell 14% over the last 12 months. 18,045 mcf in the 12 months through Jul 2026, against 21,098 mcf in the 12 months before.Last 12 monthsmcf per month01,0002,0003,0004,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas well 159880, district 04. Reported through Jul 2026. The state revises recent months.

Gas disposition

Where the gas went

Every month the operator tells the state where each mcf of gas went, using a code. The code decides how your gas is paid.

89% of the gas went to a processing plant in the last 12 months

Each bar is one month. Colors are the disposition codes the operator reported.

  • Processing plant (3)
  • Lease fuel (1)
89% of the gas went to a processing plant in the last 12 monthsShare of MCCAMPBELL, E.A. gas by disposition code each month, Aug 2023 to Jul 2026. 89% 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
89% of the gas went to a processing plant in the last 12 monthsShare of MCCAMPBELL, E.A. gas by disposition code each month, Aug 2023 to Jul 2026. 89% 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, gas disposition by code, lease 159880, district 04. Reported through Jul 2026.

Processing plant (3)

Sent to a gas plant that pulls out natural gas liquids. Your statement should show plant products, and may show processing fees.

Lease fuel (1)

Burned to run equipment on the lease. Not sold, so it pays no royalty. A few percent is normal.

None of the gas was flared in the last 12 months.

Operator history

Who has run this lease

The operator runs the wells and pays your royalty. When the operator changes, payments often slip for a month or two.

The operator changed 2 times, most recently in May 2022

If your statements skip or shrink around a change, ask the new operator's owner relations department whether the month is in suspense.

Operators of this lease over timeStephens & Johnson Operating Co., Jan 2020 to Jun 2020; Laguna Operating LLC, Jul 2020 to Apr 2022; Altalay STX LLC, May 2022 to Jul 20262020202120222023202420252026Changed Jul 2020Changed May 2022Stephens & Johnson Operating…Jan 2020 to Jun 2020Laguna Operating LLCJul 2020 to Apr 2022Altalay STX LLCMay 2022 to now
Operators of this lease over timeStephens & Johnson Operating Co., Jan 2020 to Jun 2020; Laguna Operating LLC, Jul 2020 to Apr 2022; Altalay STX LLC, May 2022 to Jul 20262020202120222023202420252026Changed Jul 2020Changed May 2022Stephens & Johnson Operating Co.Jan 2020 to Jun 2020Laguna Operating LLCJul 2020 to Apr 2022Altalay STX LLCMay 2022 to now

SourceTexas Railroad Commission Production Data Query, operator by month. Reported through Jul 2026.

Wells

1 well on this lease

Every well the Railroad Commission links to gas well 159880 in district 04. The API number is the state’s ID for a well.
Wells on MCCAMPBELL, E.A.
API numberWell no.Status
42-505-333184274Active

SourceTexas Railroad Commission Wellbore Query, district 04, lease 159880.

Who buys and gathers

Who moves and buys this lease's production

The operator files a Form P-4 with the Railroad Commission naming the companies authorised to gather and buy the oil and gas. The buyer's price is the one your royalty is figured on.

  • Condensate

    Gulfmark Energy, Inc. gathers it.

    100% of it, on the list since Nov 1, 2019

  • Gas from gas wells

    Gulf Coast Energy, Inc. buys it; Energy Transfer Company gathers it.

    Gulf Coast Energy, Inc. buys it: 100% of it, on the list since Jan 2, 2024 · Energy Transfer Company gathers it: 100% of it, on the list since Nov 1, 2019

Companies that used to be listed: Gulf Coast Energy, Inc. (buys it, until Jan 2, 2024); Houston Pipe Line Company LP (buys it, until Jan 1, 2024); Flint Hills Resources, LP (gathers it, until Nov 1, 2019); Houston Pipe Line Company LP (gathers it, until Nov 1, 2019); Nominator Not Required / Swr 31 (nominates it, until Nov 1, 2019); Houston Pipe Line Company LP (buys it, until Nov 1, 2019).

SourceRailroad Commission of Texas, Form P-4 file, dated Sep 24, 2026 (source). A listed company is authorised to move or buy the production; the state does not say what it paid.

Who buys my oil and gasIs my oil price fair?

Unit and wells

854 acres on the newest permit

Acres and wells as the operator filed them on its Railroad Commission drilling permits. Your decimal is your net acres over the unit acres, so this is the number to hold your division order against.
Wells on the permits
11 not plugged
Horizontal
0
First completion
Aug 3, 1996
Latest permit
Mar 20, 1996
Wells and acres on the permits for McCampbell, E.a.
API numberWell no.Acreson the permit
42-505-333184274854

SourceRailroad Commission of Texas, drilling permits and wellbore file, Sep 26, 2026 (source 1, source 2). The acres are what the operator filed; they are not a survey.

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Estimator

Estimate your royalty for this lease

A rough check before you look at a statement: the state volumes times your decimal, priced at WTI and Henry Hub.

Estimator

What could your check be?

Your decimal interest is the small number on your division order that says what share of the whole lease (8/8ths) is yours. Type it in and we apply it to what the state says MCCAMPBELL, E.A. sold each month.

For example 0.00097656, or a fraction like 1/1024.

Your estimate appears here

Enter your decimal to see an estimated royalty for each of the last 12 months this lease reported. Nothing you type leaves your browser.

An estimate, not your check

It ignores gathering and processing fees, taxes, plant products and the price your operator actually gets, so your statement will differ. Use it as a ceiling to compare against. Regional gas prices are often below Henry Hub.

Ledger

36 months, newest first

Compare these numbers with your statements. Your share of a month is the “Gas sold” volume times your decimal. Scroll sideways on a phone.
Monthly production, disposition and prices for MCCAMPBELL, E.A.
MonthGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Altalay STX1,4581,3060$80.46$2.89
Jun 2026Altalay STX1,5041,3620$84.81$3.15
May 2026Altalay STX1,5891,4110$102.13$2.94
Apr 2026Altalay STX1,4551,2270$100.32$2.77
Mar 2026Altalay STX1,4871,2870$91.38$3.04
Feb 2026Altalay STX1,3391,1600$64.51$3.62
Jan 2026Altalay STX1,6001,3890$60.04$7.72
Dec 2025Altalay STX1,4891,3300$57.97$4.26
Nov 2025Altalay STX1,6191,4360$60.06$3.79
Oct 2025Altalay STX1,2931,1630$60.89$3.19
Sep 2025Altalay STX1,5791,4620$63.96$2.97
Aug 2025Altalay STX1,6331,4980$64.86$2.91
Jul 2025Altalay STX1,6621,5570$68.39$3.20
Jun 2025Altalay STX1,7861,6010$68.17$3.02
May 2025Altalay STX1,5131,3900$62.17$3.12
Apr 2025Altalay STX1,7751,5910$63.54$3.42
Mar 2025Altalay STX1,8511,5630$68.24$4.12
Feb 2025Altalay STX1,6271,3480$71.53$4.19
Jan 2025Altalay STX2,2571,9330$75.74$4.13
Dec 2024Altalay STX8517300$70.12$3.01
Nov 2024Altalay STX1,9161,6550$69.95$2.12
Oct 2024Altalay STX2,0371,7570$71.99$2.20
Sep 2024Altalay STX1,8661,6900$70.24$2.28
Aug 2024Altalay STX1,9571,7810$76.68$1.99
Jul 2024Altalay STX1,9791,8350$81.80$2.07
Jun 2024Altalay STX1,6681,4510$79.77$2.54
May 2024Altalay STX1,2641,0890$80.02$2.12
Apr 2024Altalay STX2,0691,7720$85.35$1.60
Mar 2024Altalay STX2,3422,0190$81.28$1.49
Feb 2024Altalay STX2,2602,0320$77.25$1.72
Jan 2024Altalay STX2,5102,3220$74.15$3.18
Dec 2023Altalay STX2,6792,5060$71.90$2.52
Nov 2023Altalay STX2,3662,1580$77.69$2.71
Oct 2023Altalay STX2,4322,0940$85.64$2.98
Sep 2023Altalay STX2,9042,4950$89.43$2.64
Aug 2023Altalay STX3,3672,9550$81.39$2.58

No report filed More than 3% of gas flared

SourceVolumes: Texas Railroad Commission Production Data Query, reported through Jul 2026. Prices: EIA WTI Cushing spot and Henry Hub spot, monthly, through Aug 2026. “Gas sold” is gas sent to a transmission line (code 2) or a plant (code 3).

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Around this lease

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Everything on this page connects to the operator, field and county records. Start from any of them.

This lease belongs to

OperatorAltalay STX LLCFieldAlworth(wilcox, Hinnant 1st)CountyZapata County

Altalay STX LLC in Zapata County

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Alworth(wilcox, Hinnant 1st) field

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Leases within 10 km

Found by the location of their wells.

Drilling permits within 10 km

How to read this page

Questions owners ask

What is a decimal interest?

It is your share of the whole lease, written as a decimal. A 1/4 royalty on 5 net acres in a 1,280-acre unit is 1/4 × 5 ÷ 1,280 = 0.00097656. Your division order states yours.

How do I use this page to check a royalty check?

Take the “Gas sold” volume for the month the check covers and multiply it by your decimal. The answer should match the mcf on your statement. If it does not, upload the statement and we will show where the two differ.

Why is the newest month Jul 2026?

The Railroad Commission publishes production two to three months after the fact and revises recent months. We re-pull the latest three months on every update.

Does this page show what my check should be?

No. It shows what the state recorded. Prices, fees and taxes depend on your lease and on what your operator gets for the oil and gas. The estimator gives a ceiling to compare against.

Sources and method

Where these numbers come from

  • Production and disposition by month: Texas Railroad Commission Production Data Query, gas well 159880, district 04, reported through Jul 2026.
  • Wells: Texas Railroad Commission Wellbore Query.
  • Prices: U.S. Energy Information Administration, WTI Cushing spot and Henry Hub spot, monthly.
  • Page updated Sep 28, 2026.

We show the state’s numbers as filed. Where the state has no report for a month, we say so instead of guessing.

FAQ

Questions about MCCAMPBELL, E.A.

Who operates the MCCAMPBELL, E.A. lease?

The Railroad Commission lists Altalay STX LLC (operator number 100111) as the operator of this lease in Zapata County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the MCCAMPBELL, E.A. lease produced?

The lease reported 18,045 mcf of gas in the last 12 months through Jul 2026. Monthly figures for 36 months are in the ledger on this page, taken from the Railroad Commission's production data.

Does this page show who owns the royalty?

No. Railroad Commission records show who operates a lease and what it reported, not who owns the minerals or receives royalty. Your division order and royalty stub name the lease and your decimal interest.

How do I check my royalty stub against this lease?

Multiply the lease's volume for a month by your decimal interest and compare it with the barrels and mcf on your stub for the same month. The two are seldom identical, since sales and reporting months can differ, but a large gap is worth a question to the operator.

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