EDWARDS UNIT

Oil · District 01 · Lease #13912

Operator: UNION PACIFIC RESOURCES COMPANY

Fields: LA VERNIA, WEST (AUSTIN CHALK)

Cum Oil

147k BBL

Cum Gas

20k MCF

casinghead

Wells

2

Production

1994-04 — 2025-03

Peak Month

1994-08

Production History

Cum Oil: 146,862 BBL Cum Gas: 20,422 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,555 BBL/mo

Di (annual)

44.1%

b-factor

0.2

EUR

120,768 BBL

R-squared

0.794

type

hyperbolic

Operator History (from monthly production reports)

2020-09 — 2026-07 THREE J ENERGY, INC. 71 mo

2019-03 — 2020-08 ATTIS OPERATING I INC. 18 mo

2018-09 — 2019-02 GUARDIAN ENERGY OPERATING CO LLC 6 mo

2015-11 — 2018-08 CWS ACEITE OPERATING, INC. 34 mo

2006-04 — 2015-10 G & K OPERATING, LLC 115 mo

2000-01 — 2006-03 TANGLEWOOD OIL & GAS CO. 75 mo

1997-10 — 1999-12 COLT RESOURCES CORPORATION 27 mo

1994-06 — 1997-09 DENVERAMERICAN PETROLEUM, LLC 40 mo

1994-04 — 1994-05 UNION PACIFIC RESOURCES COMPANY 2 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2 H	42-493-32494	THREE J ENERGY INC.	2	3,200	2001-05-16
1	42-493-32394	THREE J ENERGY INC.	1	3,500	1994-03-08