< leases

YORK 'A'

Oil · District 03 · Lease #22021

Operator: UNION PACIFIC AUSTIN CHALK CO.

Fields: GIDDINGS (AUSTIN CHALK-3)

Cum Oil

145k BBL

Cum Gas

164k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

2005-09

Production History

Cum Oil: 144,637 BBL Cum Gas: 163,507 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,310 BBL/mo

Di (annual)

246.7%

b-factor

0.8

EUR

121,661 BBL

R-squared

0.738

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
1993-01 — 1995-04 GEMINI EXPLORATION COMPANY 28 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-287-32355MAGNOLIA OIL & GAS OPERATING LLC28,5002005-06-22
2RE42-287-32355MAGNOLIA OIL & GAS OPERATING LLC28,5002005-06-22