FLANAGAN UNIT

Oil · District 8A · Lease #66633

Operator: SHELL WESTERN E&P INC.

Fields: HARRIS

Cum Oil

91k BBL

Cum Gas

20k MCF

casinghead

Wells

7

Production

1993-01 — 2012-04

Peak Month

1993-01

Production History

Cum Oil: 91,218 BBL Cum Gas: 20,440 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,610 BBL/mo

Di (annual)

41.5%

b-factor

0.4

EUR

74,857 BBL

R-squared

0.629

type

hyperbolic

Operator History (from monthly production reports)

2026-05 — 2026-07 HILCORP ENERGY COMPANY 3 mo
2000-05 — 2026-04 OCCIDENTAL PERMIAN LTD. 312 mo
1997-03 — 2000-04 ALTURA ENERGY LTD. 38 mo
1993-01 — 1997-02 SHELL WESTERN E&P INC. 50 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
45GLOCCIDENTAL PERMIAN LTD.37,3502017-09-29
111OCCIDENTAL PERMIAN LTD.28,0002017-03-20
80GLOCCIDENTAL PERMIAN LTD.26,5002005-07-28
81GLOCCIDENTAL PERMIAN LTD.26,5002005-07-28
32WROCCIDENTAL PERMIAN LTD.47,3501993-04-01
105OCCIDENTAL PERMIAN LTD.16,4831991-05-13
49GLSHELL WESTERN E&P INC.16,1001983-10-26