ECHOLS "1"

Oil · District 08 · Lease #41911

Operator: THREE RIVERS OPERATING CO II LLC

Cum Oil

35k BBL

Cum Gas

23k MCF

casinghead

Wells

1

Production

2011-11 — 2026-04

Peak Month

2012-01

Production History

Cum Oil: 35,409 BBL Cum Gas: 23,282 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,995 BBL/mo

Di (annual)

424.0%

b-factor

0.9

EUR

25,034 BBL

R-squared

0.696

type

hyperbolic

Operator History (from monthly production reports)

2025-10 — 2026-07 LAGUNA TEXAS RESOURCES, LLC 10 mo
2020-04 — 2025-09 EOG RESOURCES, INC. 66 mo
2016-01 — 2020-03 THOMPSON, J. CLEO 51 mo
2014-12 — 2015-12 OXY USA INC. 13 mo
2014-02 — 2014-11 THREE RIVERS OPERATING CO II LLC 10 mo
2011-11 — 2014-01 PIONEER NATURAL RES. USA, INC. 27 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1LAGUNA TEXAS RESOURCES, LLC311,4502011-05-16