< leases

RUTHVEN, SHIRLEY

Oil · District 03 · Lease #22496

Operator: UNION PACIFIC AUSTIN CHALK CO.

Fields: GIDDINGS (AUSTIN CHALK-3)

Cum Oil

338k BBL

Cum Gas

1.1M MCF

casinghead

Wells

2

Production

1994-07 — 2026-04

Peak Month

2012-05

Production History

Cum Oil: 337,537 BBL Cum Gas: 1,101,270 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,145 BBL/mo

Di (annual)

48.4%

b-factor

0.3

EUR

180,931 BBL

R-squared

0.786

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
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
1994-07 — 1995-04 GEMINI EXPLORATION COMPANY 10 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-287-32588MAGNOLIA OIL & GAS OPERATING LLC111,0002011-08-02
142-477-30328MAGNOLIA OIL & GAS OPERATING LLC211,0621994-06-03