KOPLAR, ROBERT B

Oil · District 03 · Lease #12355

Operator: TEXAS VANGUARD OIL COMPANY

Cum Oil

22k BBL

Cum Gas

142k MCF

casinghead

Wells

1

Production

1993-01 — 2004-03

Peak Month

2001-09

Production History

Cum Oil: 22,446 BBL Cum Gas: 142,210 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

527 BBL/mo

Di (annual)

173.2%

b-factor

1.3

EUR

24,121 BBL

R-squared

0.667

type

hyperbolic

Operator History (from monthly production reports)

2018-08 — 2026-07 MAGNOLIA OIL & GAS OPERATING LLC 96 mo
2007-08 — 2018-07 ENERVEST OPERATING, L.L.C. 132 mo
2004-04 — 2007-07 ANADARKO E&P COMPANY LP 40 mo
2000-12 — 2004-03 TEXAS VANGUARD OIL COMPANY 40 mo
1993-01 — 2000-11 CRM ENERGY, INC. 95 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MAGNOLIA OIL & GAS OPERATING LLC210,5002004-05-03