WEST CHICO UNIT

Oil · District 09 · Lease #10334

Operator: WG OPERATING, INC.

Cum Oil

165k BBL

Cum Gas

978k MCF

casinghead

Wells

19

Production

1993-01 — 2026-04

Peak Month

2000-04

Production History

Cum Oil: 165,435 BBL Cum Gas: 977,593 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,475 BBL/mo

Di (annual)

19.6%

b-factor

0.0

EUR

90,110 BBL

R-squared

0.411

type

exponential

Operator History (from monthly production reports)

2021-06 — 2026-07 LARGE OPERATING LLC 62 mo
2020-08 — 2021-05 EVEREST ENERGY LLC 10 mo
2019-04 — 2020-07 BIG MOUNTAIN OPERATING LLC 16 mo
2015-11 — 2019-03 BRIDWELL OIL CO. 41 mo
2010-12 — 2015-10 MILAGRO EXPLORATION, LLC 59 mo
2000-12 — 2010-11 WG OPERATING, INC. 120 mo
1998-01 — 2000-11 JW ENERGY CO., LTD 35 mo
1993-01 — 1997-12 OXY USA INC. 60 mo

Wells (19)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
902LARGE OPERATING LLC16,0001999-12-21
804LARGE OPERATING LLC16,0001999-11-03
718LARGE OPERATING LLC15,9001987-09-10
717LARGE OPERATING LLC15,7001985-10-02
803LARGE OPERATING LLC15,8001983-08-11
715WLARGE OPERATING LLC15,8001982-12-01
10142-497-81180LARGE OPERATING LLC------
10542-497-02209LARGE OPERATING LLC------
10742-497-02211LARGE OPERATING LLC------
20442-497-02532LARGE OPERATING LLC------
30142-497-04013LARGE OPERATING LLC------
40242-497-81185LARGE OPERATING LLC------
40342-497-81186LARGE OPERATING LLC------
40542-497-02534LARGE OPERATING LLC------
601W42-497-81188LARGE OPERATING LLC------
60242-497-04014LARGE OPERATING LLC------
60342-497-02889LARGE OPERATING LLC------
70342-497-81191LARGE OPERATING LLC------
901W42-497-02544LARGE OPERATING LLC------