BLOCK 31 UNIT

Oil · District 08 · Lease #9684

Operator: OXY USA INC.

Cum Oil

94k BBL

Cum Gas

8k MCF

casinghead

Wells

29

Production

1993-01 — 2016-07

Peak Month

1993-05

Production History

Cum Oil: 93,744 BBL Cum Gas: 8,306 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,888 BBL/mo

Di (annual)

551.0%

b-factor

0.8

EUR

39,609 BBL

R-squared

0.471

type

hyperbolic

Operator History (from monthly production reports)

2026-05 — 2026-07 HILCORP ENERGY COMPANY 3 mo
2010-11 — 2026-04 OXY USA INC. 186 mo
2002-01 — 2010-10 BP AMERICA PRODUCTION COMPANY 106 mo
1994-06 — 2001-12 ARCO PERMIAN 91 mo
1993-01 — 1994-05 ARCO OIL & GAS CO. 17 mo

Wells (29)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
P 19HILCORP ENERGY COMPANY13,6002015-09-14
F 4FOXY USA INC.13,1001997-06-25
A 6AOXY USA INC.19,0501990-06-11
C 7HILCORP ENERGY COMPANY13,3001982-04-05
A 12AOXY USA INC.13,3001977-12-12
P 11HILCORP ENERGY COMPANY13,3001977-11-29
P 12HILCORP ENERGY COMPANY13,3001977-11-29
C 6OXY USA INC.13,3001977-09-12
O 9HILCORP ENERGY COMPANY13,3001977-09-12
101D42-103-10645BP AMERICA PRODUCTION COMPANY------
301D42-103-10834HILCORP ENERGY COMPANY------
A 5A42-103-10063HILCORP ENERGY COMPANY------
A 9A42-103-31520HILCORP ENERGY COMPANY------
F 3F42-103-03009HILCORP ENERGY COMPANY------
G 3G42-103-03006HILCORP ENERGY COMPANY------
H 2H42-103-03003HILCORP ENERGY COMPANY------
H 442-103-03059HILCORP ENERGY COMPANY------
K 2K42-103-10253HILCORP ENERGY COMPANY------
K 342-103-03053ATLANTIC RICHFIELD CO.------
O 742-103-31435HILCORP ENERGY COMPANY------
P 342-103-03025HILCORP ENERGY COMPANY------
P 442-103-03026HILCORP ENERGY COMPANY------
P 542-103-03027HILCORP ENERGY COMPANY------
P 642-103-10098HILCORP ENERGY COMPANY------
P 942-103-31364HILCORP ENERGY COMPANY------
Y 242-103-03015HILCORP ENERGY COMPANY------
Y 3W42-103-03013HILCORP ENERGY COMPANY------
Y 642-103-31288HILCORP ENERGY COMPANY------
Y 742-103-31521HILCORP ENERGY COMPANY------