SUN T S H (OLMOS), District 01, 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

301

with a page here

Operators

Value, all time

$590.4 M

92% of the register's 326

Discovered

1983-04-30

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 301 leases in this field that have a page here — 92% of the register's 326 — 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.

Wells	In the field	Producing	Produced in 2025	Also produced	Cumulative
Oil	21	17	2,239 bbl	84,892 mcfcasinghead	407,231 bblsince discovery
Gas	253	227	1,451,612 mcf	9,805 bblcondensate	85,267,833 mcfsince 1970

The discovery well's oil measured 54.7° API gravity, perforated at 7,734 ft.

Spacing rule

What the Commission requires of a well on this field.

Wells	Rule	Effective	From the lease line	Acres per unit	Max diagonal
Gas	B	2013-01-15	467 ft	40	2,100 ft
Gas	O	2013-01-15	467 ft	20	2,100 ft
Oil	B	2013-01-15	467 ft	40	2,100 ft
Oil	O	2013-01-15	467 ft	20	2,100 ft

Commission remarks: ALLOCATION FORMULA OF 5% PER WELL 95% DEL. IF CAPACITY RESCINDED

County

La Salle County

Leases in this field

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

Showing the 200 largest of 301 leases, by the value we compute. Every one of them is in the sitemap.

Lease	Operator	Value
MARTIN TR. 2	LEWIS PETRO PROPERTIES, INC.	$13.5 M
APPLING	LEWIS PETRO PROPERTIES, INC.	$9.7 M
APPLING	LEWIS PETRO PROPERTIES, INC.	$9.2 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$7.5 M
APPLING	LEWIS PETRO PROPERTIES, INC.	$7.5 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$6.3 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$6.3 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$6.0 M
VENADO	PETROVYBE OPCO LLC	$6.0 M
PRYOR	PETROVYBE OPCO LLC	$5.8 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$5.8 M
CHATO 24	LEWIS PETRO PROPERTIES, INC.	$5.7 M
CHATO 22 A	LEWIS PETRO PROPERTIES, INC.	$5.5 M
APPLING	LEWIS PETRO PROPERTIES, INC.	$5.4 M
APPLING 698	LEWIS PETRO PROPERTIES, INC.	$5.4 M
GUTIERREZ	SINGLE BARREL OIL AND GAS LLC	$5.1 M
CIERVO	PETROVYBE OPCO LLC	$5.1 M
APPLING 1	PETROVYBE OPCO LLC	$5.1 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$5.1 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$5.0 M
STOCKTON B	PETROVYBE OPCO LLC	$4.6 M
APPLING 697	LEWIS PETRO PROPERTIES, INC.	$4.6 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$4.5 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$4.4 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$4.4 M
MARTIN, J. C.	SWIFT ENERGY OPERATING, LLC	$4.4 M
CIERVO	PETROVYBE OPCO LLC	$4.3 M
CHATO 22	LEWIS PETRO PROPERTIES, INC.	$4.3 M
APPLING	LEWIS PETRO PROPERTIES, INC.	$4.2 M
CHATO 24	LEWIS PETRO PROPERTIES, INC.	$4.1 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$4.1 M
APPLING 698	LEWIS PETRO PROPERTIES, INC.	$4.1 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$4.0 M
GUTIERREZ F	PETROVYBE OPCO LLC	$4.0 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$3.9 M
MARTIN TR. 4	LEWIS PETRO PROPERTIES, INC.	$3.9 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$3.9 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$3.9 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$3.9 M
CHATO 27	LEWIS PETRO PROPERTIES, INC.	$3.8 M
APPLING 698	LEWIS PETRO PROPERTIES, INC.	$3.8 M
CHATO 24	LEWIS PETRO PROPERTIES, INC.	$3.8 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$3.8 M
APPLING 9	LEWIS PETRO PROPERTIES, INC.	$3.8 M
PINKY	PETROVYBE OPCO LLC	$3.7 M
MARTIN TR4 UNIT	LEWIS PETRO PROPERTIES, INC.	$3.6 M
CHATO 24	LEWIS PETRO PROPERTIES, INC.	$3.5 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$3.5 M
CHATO	PETROVYBE OPCO LLC	$3.5 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$3.5 M
APPLING 700	LEWIS PETRO PROPERTIES, INC.	$3.5 M
APPLING 698	LEWIS PETRO PROPERTIES, INC.	$3.4 M
MARTIN TR. 2	LEWIS PETRO PROPERTIES, INC.	$3.4 M
MARTIN TR. 2	LEWIS PETRO PROPERTIES, INC.	$3.3 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$3.2 M
APPLING 10	LEWIS PETRO PROPERTIES, INC.	$3.2 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$3.1 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$3.1 M
MARTIN TR. 4	LEWIS PETRO PROPERTIES, INC.	$3.1 M
CHATO 24	LEWIS PETRO PROPERTIES, INC.	$3.1 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$3.1 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$3.0 M
CHATO 27	LEWIS PETRO PROPERTIES, INC.	$3.0 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$3.0 M
A.M.G. CHATO 25	LEWIS PETRO PROPERTIES, INC.	$3.0 M
APPLING 697 GU	LEWIS PETRO PROPERTIES, INC.	$3.0 M
CHATO 24	LEWIS PETRO PROPERTIES, INC.	$3.0 M
APPLING 697	LEWIS PETRO PROPERTIES, INC.	$3.0 M
APPLING 698	LEWIS PETRO PROPERTIES, INC.	$2.9 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$2.9 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$2.9 M
APPLING 698	LEWIS PETRO PROPERTIES, INC.	$2.9 M
PRYOR	PETROVYBE OPCO LLC	$2.8 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$2.8 M
PRYOR	PETROVYBE OPCO LLC	$2.8 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$2.8 M
STOCKTON A	PETROVYBE OPCO LLC	$2.8 M
CHATO 22 A	LEWIS PETRO PROPERTIES, INC.	$2.8 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$2.7 M
STOCKTON	PETROVYBE OPCO LLC	$2.7 M
APPLING 697	LEWIS PETRO PROPERTIES, INC.	$2.6 M
APPLING 698	LEWIS PETRO PROPERTIES, INC.	$2.6 M
CHATO	PETROVYBE OPCO LLC	$2.6 M
MARTIN, J. C.	SWIFT ENERGY OPERATING, LLC	$2.6 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$2.6 M
CHATO 28	LEWIS PETRO PROPERTIES, INC.	$2.6 M
EF ENERGY/WINSLOW, O. H.	PETROVYBE OPCO LLC	$2.5 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$2.5 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$2.4 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$2.4 M
APPLING 697 GU	LEWIS PETRO PROPERTIES, INC.	$2.4 M
STOCKTON "A"	FLETCHER OPERATING, LLC	$2.4 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$2.4 M
AMG CHATO 25 C	LEWIS PETRO PROPERTIES, INC.	$2.4 M
CHATO 22 A	LEWIS PETRO PROPERTIES, INC.	$2.4 M
CHATO 27	LEWIS PETRO PROPERTIES, INC.	$2.4 M
APPLING 697	LEWIS PETRO PROPERTIES, INC.	$2.3 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$2.3 M
GOLLA 7	LEWIS PETRO PROPERTIES, INC.	$2.3 M
APPLING 700	LEWIS PETRO PROPERTIES, INC.	$2.3 M
GUTIERREZ F	PETROVYBE OPCO LLC	$2.3 M
CHATO 22	LEWIS PETRO PROPERTIES, INC.	$2.3 M
CHATO 27	LEWIS PETRO PROPERTIES, INC.	$2.3 M
WINSLOW	FLETCHER OPERATING, LLC	$2.3 M
VT NYE RANCH	LEWIS PETRO PROPERTIES, INC.	$2.3 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$2.3 M
GUTIERREZ D	PETROVYBE OPCO LLC	$2.3 M
MARTIN TR. 4	LEWIS PETRO PROPERTIES, INC.	$2.2 M
MARTIN TR. 2	LEWIS PETRO PROPERTIES, INC.	$2.2 M
APPLING 9A	LEWIS PETRO PROPERTIES, INC.	$2.2 M
CIERVO	PETROVYBE OPCO LLC	$2.2 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$2.2 M
CIERVO	PETROVYBE OPCO LLC	$2.2 M
APPLING 700	LEWIS PETRO PROPERTIES, INC.	$2.2 M
GOLLA 7	LEWIS PETRO PROPERTIES, INC.	$2.1 M
MARTIN TR. 4	LEWIS PETRO PROPERTIES, INC.	$2.1 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$2.1 M
STOCKTON A	PETROVYBE OPCO LLC	$2.1 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$2.1 M
AMG CHATO 25 C	LEWIS PETRO PROPERTIES, INC.	$2.0 M
PRYOR	PETROVYBE OPCO LLC	$2.0 M
VT RMG LAND	LEWIS PETRO PROPERTIES, INC.	$2.0 M
STOCKTON	PETROVYBE OPCO LLC	$2.0 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$2.0 M
PRYOR	PETROVYBE OPCO LLC	$2.0 M
CHATO 28 C	LEWIS PETRO PROPERTIES, INC.	$1.9 M
PRYOR	PETROVYBE OPCO LLC	$1.9 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$1.9 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$1.9 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$1.9 M
GUTIERREZ A	PETROVYBE OPCO LLC	$1.9 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$1.9 M
GUTIERREZ E	PETROVYBE OPCO LLC	$1.9 M
GOLLA 7	LEWIS PETRO PROPERTIES, INC.	$1.8 M
CHATO	PETROVYBE OPCO LLC	$1.8 M
STOCKTON A	PETROVYBE OPCO LLC	$1.8 M
APPLING 9	LEWIS PETRO PROPERTIES, INC.	$1.8 M
VT NYE RANCH	LEWIS PETRO PROPERTIES, INC.	$1.8 M
GUTIERREZ E	PETROVYBE OPCO LLC	$1.7 M
GUTIERREZ E	PETROVYBE OPCO LLC	$1.7 M
CHATO 22 A	LEWIS PETRO PROPERTIES, INC.	$1.7 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$1.7 M
CHATO 27	LEWIS PETRO PROPERTIES, INC.	$1.7 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$1.7 M
CIERVO	PETROVYBE OPCO LLC	$1.7 M
CHATO 28 C	LEWIS PETRO PROPERTIES, INC.	$1.7 M
CHATO 28 D	LEWIS PETRO PROPERTIES, INC.	$1.7 M
APPLING 698	LEWIS PETRO PROPERTIES, INC.	$1.7 M
GUTIERREZ B	PETROVYBE OPCO LLC	$1.6 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$1.6 M
VT NYE RANCH	LEWIS PETRO PROPERTIES, INC.	$1.6 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$1.6 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$1.6 M
CHATO 23	LEWIS PETRO PROPERTIES, INC.	$1.5 M
CHATO 28 C	LEWIS PETRO PROPERTIES, INC.	$1.5 M
GUTIERREZ C	PETROVYBE OPCO LLC	$1.5 M
CHATO 27	LEWIS PETRO PROPERTIES, INC.	$1.5 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$1.5 M
MARTIN TR. 4	LEWIS PETRO PROPERTIES, INC.	$1.5 M
STOCKTON, J.H.	PETROVYBE OPCO LLC	$1.5 M
APPLING 748 A	LEWIS PETRO PROPERTIES, INC.	$1.5 M
CHATO 22A	LEWIS PETRO PROPERTIES, INC.	$1.5 M
CHATO 24	LEWIS PETRO PROPERTIES, INC.	$1.4 M
VT RMG LAND	LEWIS PETRO PROPERTIES, INC.	$1.4 M
APPLING 695	LEWIS PETRO PROPERTIES, INC.	$1.4 M
GOLLA 7	LEWIS PETRO PROPERTIES, INC.	$1.4 M
APPLING 700	LEWIS PETRO PROPERTIES, INC.	$1.4 M
VT GUTIERREZ, RAYMOND	LEWIS PETRO PROPERTIES, INC.	$1.4 M
PRYOR	PETROVYBE OPCO LLC	$1.3 M
CHATO 28 B	LEWIS PETRO PROPERTIES, INC.	$1.3 M
CHATO A	FLETCHER OPERATING, LLC	$1.3 M
CIERVO	PETROVYBE OPCO LLC	$1.3 M
STOCKTON B	PETROVYBE OPCO LLC	$1.3 M
APPLING 747	LEWIS PETRO PROPERTIES, INC.	$1.3 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$1.3 M
APPLING 747	LEWIS PETRO PROPERTIES, INC.	$1.3 M
VT GUTIERREZ, RAYMOND	LEWIS PETRO PROPERTIES, INC.	$1.3 M
CIERVO	PETROVYBE OPCO LLC	$1.2 M
CHATO 22	LEWIS PETRO PROPERTIES, INC.	$1.2 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$1.2 M
GUTIERREZ C	FLETCHER OPERATING, LLC	$1.2 M
CHATO 23	LEWIS PETRO PROPERTIES, INC.	$1.2 M
CHATO 22 A	LEWIS PETRO PROPERTIES, INC.	$1.2 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$1.2 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$1.2 M
VT RMG LAND	LEWIS PETRO PROPERTIES, INC.	$1.2 M
REEVES	PETROVYBE OPCO LLC	$1.2 M
APPLING 697	LEWIS PETRO PROPERTIES, INC.	$1.2 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$1.2 M
MARTIN 'A' 9	LEWIS PETRO PROPERTIES, INC.	$1.1 M
WINSLOW, O. H.	PETROVYBE OPCO LLC	$1.1 M
CHATO 28 C	LEWIS PETRO PROPERTIES, INC.	$1.1 M
FOSTER, J. ESTATE	PETROVYBE OPCO LLC	$1.1 M
FOSTER, J. ESTATE	FLETCHER OPERATING, LLC	$1.1 M
AMG CHATO 25 C	LEWIS PETRO PROPERTIES, INC.	$1.1 M
APPLING 697	LEWIS PETRO PROPERTIES, INC.	$1.1 M
CHATO 27	LEWIS PETRO PROPERTIES, INC.	$1.1 M
APPLING	PETROVYBE OPCO LLC	$1.0 M
MARTIN, J. C.	PETROVYBE OPCO LLC	$969 k
AMG CHATO 25 C	LEWIS PETRO PROPERTIES, INC.	$963 k

Field number 87251500, from the Railroad Commission's field register. The register's own index resolves 326 leases and 350 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.