GRAY, COLUMBUS, ETAL

Oil · District 08 · Lease #1637

Operator: VAQUERO PERMIAN, LLC

Cum Oil

143k BBL

Cum Gas

55k MCF

casinghead

Wells

4

Production

1993-01 — 2026-04

Peak Month

2012-10

Production History

Cum Oil: 143,312 BBL Cum Gas: 55,326 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

625 BBL/mo

Di (annual)

8.3%

b-factor

1.1

EUR

152,763 BBL

R-squared

0.546

type

hyperbolic

Operator History (from monthly production reports)

2024-04 — 2026-07 BASIN OIL & GAS OPERATING, LLC 28 mo
2023-10 — 2024-03 VAQUERO PERMIAN, LLC 6 mo
2020-02 — 2023-09 VAQUERO HUNTER INC. 44 mo
2015-01 — 2020-01 BREITBURN OPERATING L.P. 61 mo
2010-09 — 2014-12 QUANTUM RESOURCES MANAGEMENT,LLC 52 mo
2002-01 — 2010-08 ENCORE OPERATING, L.P. 104 mo
1993-01 — 2001-12 CONOCO INC. 108 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1930BASIN OIL & GAS OPERATING, LLC310,4002004-05-12
1907BASIN OIL & GAS OPERATING, LLC29,5002003-06-19
1911BASIN OIL & GAS OPERATING, LLC15,9001980-10-01
17 LBASIN OIL & GAS OPERATING, LLC26,0001978-09-11