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Royalty Clerk

Texas field · RRC field 28899040 · District 08

Emma (Barnett Shale)

165 producing leases run by 12 operators in 6 Texas counties. The field reported 13 million barrels of oil and 61 million mcf of gas in the 12 months through Jul 2026.

Field dossier · 6 counties

13,110,580bbl oil, last 12 months−5% vs prior year
Producing leases
165of 184 on record
Operators
12
Counties
6
Biggest operator
Occidental Permian Ltd.

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Where the field sits

fewermore

Martin County: 19 producing leasesMidland County: 10 producing leasesAndrews County: 110 producing leasesGlasscock County: 5 producing leasesHoward County: 1 producing leaseEctor County: 20 producing leasesAndrewsAndrewsMartinEctorMidlandGlasscockHoward
6 countiesClick a county to open it
Gas, last 12 months
61,098,908 mcf
RRC field no.
28899040
RRC district
08
Data through
Jul 2026

Production

Five years of output in Emma (Barnett Shale)

Monthly totals across the leases the Railroad Commission assigns to this field.

Oil output in the Emma (Barnett Shale) field fell 5% over the last 12 months

13M bbl in the 12 months through Jul 2026, against 13M bbl in the 12 months before. Peak month: May 2025, 1.6M bbl.

Oil output in the Emma (Barnett Shale) field fell 5% over the last 12 months13M bbl in the 12 months through Jul 2026, against 13M bbl in the 12 months before. Peak month: May 2025, 1.6M bbl.Oil, bbl per month0500k1M1.5M2MPeak 1.6M (May 25)693k20222023202420252026
Oil output in the Emma (Barnett Shale) field fell 5% over the last 12 months13M bbl in the 12 months through Jul 2026, against 13M bbl in the 12 months before. Peak month: May 2025, 1.6M bbl.Oil, bbl per month0500k1M1.5M2MPeak 1.6M (May 25)693k'22'23'24'25'26

Gas output in the Emma (Barnett Shale) field rose 8% over the last 12 months

60M mcf in the 12 months through Jul 2026, against 55M mcf in the 12 months before. Peak month: May 2025, 6.4M mcf.

Gas output in the Emma (Barnett Shale) field rose 8% over the last 12 months60M mcf in the 12 months through Jul 2026, against 55M mcf in the 12 months before. Peak month: May 2025, 6.4M mcf.Gas, mcf per month02.5M5M7.5MPeak 6.4M (May 25)3.7M20222023202420252026
Gas output in the Emma (Barnett Shale) field rose 8% over the last 12 months60M mcf in the 12 months through Jul 2026, against 55M mcf in the 12 months before. Peak month: May 2025, 6.4M mcf.Gas, mcf per month02.5M5M7.5MPeak 6.4M (May 25)3.7M'22'23'24'25'26

SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 28899040. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.

Leases

Leases in the Emma (Barnett Shale) field

Ranked by last-12-month output. Filter by operator, and open any lease for its month-by-month ledger.

Showing 25 of 150 (the 150 largest of 165 producing leases).

Search by lease name →

SourceTexas Railroad Commission, Production Data Query. Ranked by an approximate value of last-12-month output, so oil and gas wells sort together.

In the Emma (Barnett Shale) field

Who operates here, and where

Each operator and county links to its own page, so you can see the rest of what they run.

Operators in this field, by oil

Occidental Permian leads

  1. Occidental Permian Ltd.19 producing leases here4.1Mbbl
  2. Continental Resources, Inc.16 producing leases here2.2Mbbl
  3. Elevation Resources LLC74 producing leases here2.2Mbbl
  4. Fasken Oil and Ranch, Ltd.21 producing leases here2.1Mbbl
  5. Cog Operating LLC6 producing leases here633kbbl
  6. OXY USA Inc.6 producing leases here632kbbl
  7. Admiral Permian Operating LLC4 producing leases here425kbbl
  8. Firebird Energy II LLC2 producing leases here312kbbl

Counties in this field, by oil

Andrews County leads

  1. Andrews County110 producing leases4.3Mbbl
  2. Martin County19 producing leases4.1Mbbl
  3. Ector County20 producing leases2.7Mbbl
  4. Midland County10 producing leases1.2Mbbl
  5. Glasscock County5 producing leases622kbbl
  6. Howard County1 producing lease9,885bbl

More operators (number = producing leases here)

OperatorPioneer Natural Res. USA, Inc.2OperatorDiamondback E&P LLC2OperatorZarvona Energy LLC12OperatorSabalo II Operating, LLC1

Recent drilling permits in the Emma (Barnett Shale) field

For owners

What a field is, and why it matters to your check

RRC field number
28899040
RRC district
08
Leases on record
184
Producing leases
165

The Railroad Commission assigns each lease to a field: the underground pool or formation it produces from. A field can cross county lines and hold leases from many operators. Leases in the same field often move together, because they draw on the same rock.

That makes the field a fair yardstick. If your lease fell sharply and the rest of Emma (Barnett Shale) did not, that is worth a question to your operator. If the whole field fell, the cause is probably geology or price, not your check.

The field trend above sums every lease in the field, so it is a good comparison for the lease page of any lease listed here.