KELSEY (FRIO CONSOL.), District 04, Texas

A field is the Railroad Commission's unit of geology and of regulation. Its spacing rule is what decides how many wells an acreage can hold.

Leases
109
with a page here
Operators
9
Value, all time
$219.2 M
69% of the register's 157
Discovered
1999-12-21
Oil and gas

Our estimate: volumes the operator filed with the Commission, valued at the EIA first-purchase price for that month. It is not a payment anyone received, and it is not a royalty. It sums the 109 leases in this field that have a page here — 69% of the register's 157 — so it understates the field.

Production, 2025

The Railroad Commission's Oil and Gas Annual Report for 2025, its most recent. These are the state's figures for the whole field, not ours.

WellsIn the fieldProducingProduced in 2025Also producedCumulative
Oil15929,932 bbl19,370 mcfcasinghead1,244,117 bblsince discovery
Gas4020311,772 mcf38,677 bblcondensate26,943,466 mcfsince 1970

The discovery well's oil measured 45.0° API gravity, perforated at 7,020 ft.

Spacing rule

What the Commission requires of a well on this field.

WellsRuleEffectiveFrom the lease lineBetween wellsAcres per unitMax diagonal
GasB1999-12-21467 ft1,200 ft400 ft

Commission remarks: FORMULA WAS APPROVED PER DOC. NO. 04-0235957.

County

Leases in this field

Every lease here files this field's number with the Commission and has a page on this site.

LeaseOperatorValue
KELSEY UNITOVERTON PARK OIL & GAS LP$17.2 M
LOPEZ, G.G.HILCORP ENERGY COMPANY$14.2 M
STATE-MARSHALLEXXON MOBIL CORPORATION$12.8 M
LOPEZ, G. G.CHEVRON U. S. A. INC.$12.2 M
STATE-MARSHALLOVERTON PARK OIL & GAS LP$10.6 M
BASS, A. M. K., MRS.OVERTON PARK OIL & GAS LP$10.5 M
KELSEY UNITOVERTON PARK OIL & GAS LP$10.2 M
MCGILL BROS.EXXON MOBIL CORPORATION$8.3 M
STATE-MARSHALLOVERTON PARK OIL & GAS LP$8.0 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$7.8 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$6.7 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$5.8 M
STATE MARSHALLOVERTON PARK OIL & GAS LP$5.5 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$4.6 M
JUAREZ, ENEMORIOEXXON MOBIL CORPORATION$4.3 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$3.8 M
MCGILL BROS.EXXON MOBIL CORPORATION$3.3 M
VILLARREALWAGNER OIL COMPANY$3.3 M
ELOYVALLEY PETROCHEMICALS, LLC$3.1 M
VILLARREALWAGNER OIL COMPANY$3.0 M
JUAREZ, MIGUELEXXON MOBIL CORPORATION$2.8 M
STATE MARSHALLOVERTON PARK OIL & GAS LP$2.5 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$2.4 M
BASS, A.M.K. MRS. "B"OVERTON PARK OIL & GAS LP$2.4 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$2.4 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$2.4 M
MCGILL BROS.EXXON MOBIL CORPORATION$2.4 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$2.0 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$2.0 M
MCGILL BROS.EXXON MOBIL CORPORATION$2.0 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$2.0 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$1.9 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$1.9 M
JUAREZ, MIGUELOVERTON PARK OIL & GAS LP$1.8 M
MCGILL BROS NCT-1CHEVRON U. S. A. INC.$1.6 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$1.6 M
MCGILL BROS.EXXON MOBIL CORPORATION$1.5 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$1.5 M
MCGILL BROS.EXXON MOBIL CORPORATION$1.5 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$1.5 M
STATE-MARSHALLOVERTON PARK OIL & GAS LP$1.4 M
STATE MARSHALLEXXON MOBIL CORPORATION$1.3 M
MCGILL BROS.EXXON MOBIL CORPORATION$1.2 M
STATE MARSHALLOVERTON PARK OIL & GAS LP$1.2 M
KELSEY UNIT S56MFOVERTON PARK OIL & GAS LP$1.2 M
MCGILL BROS.OVERTON PARK OIL & GAS LP$1.1 M
VILLARREALWAGNER OIL COMPANY$1.1 M
GARCIA, JOSE G. DR.WAGNER OIL COMPANY$1.1 M
STATE MARSHALLOVERTON PARK OIL & GAS LP$1.1 M
MCGILL BROS.EXXON MOBIL CORPORATION$1.1 M
STATE-MARSHALLOVERTON PARK OIL & GAS LP$991 k
MCGILL BROS.EXXON MOBIL CORPORATION$959 k
PENA, NICEFOROEXXON MOBIL CORPORATION$958 k
VILLARREALPITCO INVESTMENTS, LTD.$698 k
MCGILL BROS.EXXON MOBIL CORPORATION$668 k
MCGILL BROS.OVERTON PARK OIL & GAS LP$639 k
MCGILL BROS.EXXON MOBIL CORPORATION$581 k
MCGILL BROS.EXXON MOBIL CORPORATION$556 k
MCGILL BROS.OVERTON PARK OIL & GAS LP$540 k
MCGILL BROS.EXXON MOBIL CORPORATION$529 k
MCGILL BROS.EXXON MOBIL CORPORATION$514 k
MCGILL BROS.EXXON MOBIL CORPORATION$501 k
MCGILL BROS.EXXON MOBIL CORPORATION$466 k
VILLARREALPITCO INVESTMENTS, LTD.$400 k
MCGILL BROS.EXXON MOBIL CORPORATION$307 k
KELSEY UNITEXXON MOBIL CORPORATION$275 k
GARCIA, JOSE "A"WAGNER OIL COMPANY$247 k
MCGILL BROS.EXXON MOBIL CORPORATION$203 k
KELSEY UNITEXXON MOBIL CORPORATION$200 k
MCGILL BROS.EXXON MOBIL CORPORATION$182 k
MCGILL BROS.EXXON MOBIL CORPORATION$168 k
JUAREZ, ENEMORIAEXXON MOBIL CORPORATION$124 k
MCGILL BROS.EXXON MOBIL CORPORATION$120 k
MCGILL BROS. NCT-1CHEVRON U. S. A. INC.$117 k
KELSEY UNITEXXON MOBIL CORPORATION$102 k
VILLARREALPITCO INVESTMENTS, LTD.$97 k
GARCIA, JOSE DR.WAGNER OIL COMPANY$77 k
DR. GARCIA, JOSE G.WAGNER OIL COMPANY$71 k
KELSEY UNITEXXON MOBIL CORPORATION$70 k
ELOY #3MARWELL PETROLEUM, INC.$66 k
GUERRA-GARCIA GAS UNITOXY USA INC.$58 k
MCGILL BROS.EXXON MOBIL CORPORATION$57 k
KELSEY UNITEXXON MOBIL CORPORATION$52 k
MCGILL BROS.EXXON MOBIL CORPORATION$49 k
GARCIA, DR. JOSE "B"WAGNER OIL COMPANY$44 k
KELSEY UNITEXXON MOBIL CORPORATION$36 k
MCGILL BROS.OVERTON PARK OIL & GAS LP$29 k
JUAREZ, MIGUELEXXON MOBIL CORPORATION$28 k
MCGILL BROS.EXXON MOBIL CORPORATION$28 k
MCGILL BROS. NCT-1CHEVRON U. S. A. INC.$20 k
MCGILL BROS.EXXON MOBIL CORPORATION$19 k
MCGILL BROS. NCT-1CHEVRON U. S. A. INC.$18 k
MCGILL BROS.EXXON MOBIL CORPORATION$18 k
MCGILL BROTHERSEXXON MOBIL CORPORATION$10 k
MCGILL BROS.EXXON MOBIL CORPORATION$7 k
MCGILL BROS.OVERTON PARK OIL & GAS LP$6 k
MCGILL BROS.EXXON MOBIL CORPORATION$4 k
MCGILL BROS.EXXON MOBIL CORPORATION$3 k
VILLARREALWAGNER OIL COMPANY$2 k
VILLARREALWAGNER OIL COMPANY$435
MCGILL BROS.EXXON MOBIL CORPORATION
KELSEY UNITEXXON MOBIL CORPORATION
MCGILL BROS.EXXON MOBIL CORPORATION
OLIVAREZ, MIGUELWAGNER OIL COMPANY
KELSEY UNITEXXON MOBIL CORPORATION
KELSEY UNITEXXON MOBIL CORPORATION
MCGILL BROS.EXXON MOBIL CORPORATION
MCGILL BROS.EXXON MOBIL CORPORATION
MCGILL BROS.EXXON MOBIL CORPORATION

Field number 48630030, from the Railroad Commission's field register. The register's own index resolves 157 leases and 236 wells to this field by name, over every lease in Texas rather than only those with a page here. It resolves a lease by NAME and refuses an ambiguous one, so it counts nothing for a field that shares its name with another — which is why the lease count above comes from the field number instead.