< leases

SIMMANG, Q.W.

Oil · District 03 · Lease #18619

Operator: WCS OIL & GAS CORPORATION

Fields: GIDDINGS (AUSTIN CHALK-3)

Cum Oil

57k BBL

Cum Gas

126k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

2008-05

Production History

Cum Oil: 56,516 BBL Cum Gas: 125,860 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,891 BBL/mo

Di (annual)

169.7%

b-factor

0.3

EUR

59,456 BBL

R-squared

0.443

type

hyperbolic

Operator History (from monthly production reports)

2021-09 — 2026-07 MAGNOLIA OIL & GAS OPERATING LLC 59 mo
2007-11 — 2021-08 WCS OIL & GAS CORPORATION 166 mo
2007-08 — 2007-10 ENERVEST OPERATING, L.L.C. 3 mo
2006-03 — 2007-07 ANADARKO E&P COMPANY LP 17 mo
2002-12 — 2006-02 ANADARKO AUSTIN CHALK COMPANY 39 mo
2001-02 — 2002-11 RME AUSTIN CHALK COMPANY 22 mo
1995-05 — 2001-01 UNION PACIFIC AUSTIN CHALK CO. 69 mo
1993-01 — 1995-04 GEMINI EXPLORATION COMPANY 28 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-287-31608MAGNOLIA OIL & GAS OPERATING LLC29,0002007-12-19
1RE42-287-31608MAGNOLIA OIL & GAS OPERATING LLC29,0002007-12-19