COWDEN RANCH "58"

Oil · District 08 · Lease #36883

Operator: VANGUARD OPERATING, LLC

Cum Oil

45k BBL

Cum Gas

80k MCF

casinghead

Wells

1

Production

2002-03 — 2013-10

Peak Month

2002-05

Production History

Cum Oil: 45,178 BBL Cum Gas: 80,462 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,068 BBL/mo

Di (annual)

30.8%

b-factor

0.1

EUR

46,178 BBL

R-squared

0.911

type

hyperbolic

Operator History (from monthly production reports)

2025-11 — 2026-07 CRESCENT ENERGY OPERATING, LLC 9 mo
2022-01 — 2025-10 CONTANGO RESOURCES, LLC 46 mo
2021-02 — 2021-12 CONTANGO RESOURCES, INC. 11 mo
2019-09 — 2021-01 GRIZZLY OP OF DELAWARE, LLC 17 mo
2015-10 — 2019-08 VANGUARD OPERATING, LLC 47 mo
2011-12 — 2015-09 LRE OPERATING, LLC 46 mo
2008-05 — 2011-11 LIME ROCK RESOURCES A, L.P. 43 mo
2002-03 — 2008-04 SOUTHWESTERN ENERGY PROD. CO. 74 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CRESCENT ENERGY OPERATING LLC38,1002013-09-24