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Royalty Clerk

Texas operator · RRC P-5 212175

Delfin Operating, LLC

Delfin Operating, LLC runs 18 producing leases in 2 Texas counties. The Railroad Commission shows 9,672 barrels of oil and 77,266 mcf of gas in the 12 months through Jul 2026.

Operator dossier · 2 counties

9,672bbl oil, last 12 months−14% vs prior year
Producing leases
18of 36 on record
Counties
2
Biggest county
Jack County
Biggest field
Dimock (Ellenburger)

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Where they work

fewermore

Jack County: 12 producing leasesJasper County: 6 producing leasesJackJasper
2 counties with producing leasesClick a county to open it
Gas, last 12 months
77,266 mcf
RRC operator no.
212175
Leases on record
36
Data through
Jul 2026

Production

Five years of Delfin Operating, LLC output

Monthly totals across every lease the Railroad Commission lists under this operator. When the operator buys or sells leases, its total moves with them.

Oil output from Delfin Operating, LLC fell 14% over the last 12 months

9,672 bbl in the 12 months through Jul 2026, against 11.3k bbl in the 12 months before. Peak month: Mar 2024, 2,970 bbl.

Oil output from Delfin Operating, LLC fell 14% over the last 12 months9,672 bbl in the 12 months through Jul 2026, against 11.3k bbl in the 12 months before. Peak month: Mar 2024, 2,970 bbl.Oil, bbl per month01,0002,0003,000Peak 2,970 (Mar 24)70920222023202420252026
Oil output from Delfin Operating, LLC fell 14% over the last 12 months9,672 bbl in the 12 months through Jul 2026, against 11.3k bbl in the 12 months before. Peak month: Mar 2024, 2,970 bbl.Oil, bbl per month01,0002,0003,000Peak 2,970 (Mar 24)709'22'23'24'25'26

Gas output from Delfin Operating, LLC fell 22% over the last 12 months

77.3k mcf in the 12 months through Jul 2026, against 98.7k mcf in the 12 months before. Peak month: Jul 2023, 15.2k mcf.

Gas output from Delfin Operating, LLC fell 22% over the last 12 months77.3k mcf in the 12 months through Jul 2026, against 98.7k mcf in the 12 months before. Peak month: Jul 2023, 15.2k mcf.Gas, mcf per month05,00010k15k20kPeak 15.2k (Jul 23)6,12020222023202420252026
Gas output from Delfin Operating, LLC fell 22% over the last 12 months77.3k mcf in the 12 months through Jul 2026, against 98.7k mcf in the 12 months before. Peak month: Jul 2023, 15.2k mcf.Gas, mcf per month05,00010k15k20kPeak 15.2k (Jul 23)6,120'22'23'24'25'26

SourceTexas Railroad Commission, Production Data Query, summed over every lease reported under operator 212175. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.

Leases

Delfin Operating, LLC leases, biggest first

Find the lease printed on your statement. Filter by county, sort by output or by change over the year, and open any lease for its ledger.

Showing 18 of 18.

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

Where they work

Counties and fields where Delfin Operating, LLC produces

Every county and field links to the others operating there, so you can see who else is drilling around your lease.

Counties, by Delfin Operating, LLC oil

Jack County leads

  1. Jack County12 producing leases8,991bbl
  2. Jasper County6 producing leases1,430bbl

Fields, by Delfin Operating, LLC oil

Dimock (Ellenburger) leads

  1. Dimock (Ellenburger)1 producing lease · District 09 · Field 248672255,084bbl
  2. Bowie, SW. (Marble Falls)2 producing leases · District 09 · Field 108958362,473bbl
  3. Brookeland (Austin Chalk, 8800)5 producing leases · District 06 · Field 121935001,218bbl
  4. Jack County Regular1 producing lease · District 09 · Field 45274001665bbl
  5. KRS (Marble Falls)1 producing lease · District 09 · Field 47941500487bbl
  6. Adams Ranch (Yegua DY)1 producing lease · District 03 · Field 00650940212bbl
  7. Gilley (Caddo Lime)1 producing lease · District 09 · Field 34905333168bbl
  8. Catlin (Caddo Conglomerate)4 producing leases · District 09 · Field 16359500114bbl

Recent drilling permits for Delfin Operating, LLC

How to read the statement

How to read a Delfin Operating, LLC royalty statement

Every operator lays out its stub differently, but the same seven parts are on all of them. This guide is a template, with what public records tell us about Delfin Operating, LLC added where they help. We have not catalogued Delfin Operating, LLC’s exact layout yet.

  1. The header: who paid you, and for which check

    Look for the payor name, your owner number, the check number and the check date. Keep the owner number: every call or letter to the operator starts with it.

    What we knowDelfin Operating, LLC is Railroad Commission operator 212175. The name on your check may be a parent company or a payment subsidiary.

  2. The property line: which lease this is

    Each lease you own in gets its own block, named as the operator names it. That name can be shorter than the state's, or carry a suffix such as a well number or unit letter.

    What we knowDelfin Operating, LLC runs 18 producing leases across 2 counties, so one check can list many properties. Find yours in the table above by name, or search for the name printed on the stub.

  3. Product and volume: barrels, mcf, and the month

    The stub shows the production month (the production month, not the check month), the product and your share of the volume. Divide your volume by your decimal to get the lease total, then compare it with the lease page.

    What we knowFor example, open KOIN, CORRY or CORRY B and read the “oil sold” and “gas sold” columns.

  4. Price: what the operator says it got

    Oil is usually close to the WTI benchmark for the month. Gas prices vary widely: they depend on where the gas is sold and on what the operator subtracts before it reports a price.

    What we knowGas is most of what Delfin Operating, LLC reports, so the gas price line, and what was subtracted from it, matters more on its statements than the oil price.

  5. Deductions: gathering, compression, processing

    Costs taken after the well. Some leases allow them and some do not; your lease and division order say which. A deduction that appears in one month and not the next is worth a question.

    What we knowAbout 100% of the gas Delfin Operating, LLC reported in the last 12 months went straight into pipelines rather than to a processing plant. A processing fee on that gas is worth asking about.

  6. Taxes: severance and ad valorem

    Texas severance tax is taken from your share: 4.6% of oil value and 7.5% of gas value at market. Ad valorem tax may also appear. The rate on your stub should match these.

  7. Net: gross, minus deductions and taxes, times your share

    Check the arithmetic: volume times price gives gross value, then subtract deductions and taxes. If the net does not match your check, or a month is missing, that is the first thing to ask about.

At a glance

Delfin Operating, LLC

RRC operator number (P-5)
212175
Producing leases
18
Counties
2
Biggest county
Jack County
Oil, last 12 months
9,672 bbl
Gas sent to plants
0.0%
Gas sold to pipelines
100%
Gas flared or vented
0.0%

Owner relations

Who to call at Delfin Operating, LLC

We have not yet added Delfin Operating, LLC’s owner relations phone, mailing address or online portal. It is usually printed at the top or bottom of your statement. The Railroad Commission also holds an address for the operator under number 212175.

When there is something to ask

We write the question for you, with the numbers behind it, and a letter you can send.
Check a Delfin Operating, LLC statement