ECHOLS (SPRABERRY) UNIT

Oil · District 8A · Lease #66337

Operator: SAGEBRUSH OILANDGAS COMPANY,LLC

Cum Oil

558k BBL

Cum Gas

169k MCF

casinghead

Wells

14

Production

1993-01 — 2021-09

Peak Month

1993-01

Production History

Cum Oil: 558,111 BBL Cum Gas: 168,622 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

13,027 BBL/mo

Di (annual)

40.4%

b-factor

0.3

EUR

547,402 BBL

R-squared

0.937

type

hyperbolic

Operator History (from monthly production reports)

2022-03 — 2023-05 CGS OPERATING, LLC 15 mo
2018-03 — 2022-02 MAMMOTH EXPLORATION LLC 48 mo
2010-03 — 2018-02 SABER OIL & GAS VENTURES, LLC 96 mo
2008-09 — 2010-02 SAGEBRUSH OILANDGAS COMPANY,LLC 18 mo
2005-12 — 2008-08 KIMBROUGH ENGINEERING CO, LLC 33 mo
2005-04 — 2005-11 APEX MINERALS CO. 8 mo
1998-04 — 2005-03 GREAT WESTERN DRILLING COMPANY 84 mo
1997-11 — 1998-03 PIONEER RESOURCES PRODUCING, L.P 5 mo
1995-02 — 1997-10 PARKER & PARSLEY PRODUCING L.P. 33 mo
1994-10 — 1995-01 PARKER & PARSLEY DEVELOPMENT L.P 4 mo
1993-01 — 1994-09 BRIDGE OIL COMPANY, L. P. 21 mo

Wells (14)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
701CGS OPERATING LLC29,0602020-12-11
801CGS OPERATING LLC29,0002020-12-07
802HXMAMMOTH EXPLORATION LLC28,3002001-05-25
1401CGS OPERATING LLC18,6001990-11-15
1301CGS OPERATING LLC19,0001987-02-26
1101CGS OPERATING LLC19,0001987-02-02
1201CGS OPERATING LLC19,0001986-08-12
601CGS OPERATING LLC19,0001985-10-21
1001CGS OPERATING LLC112,2001985-10-15
501CGS OPERATING LLC19,0001985-05-28
201CGS OPERATING LLC19,0001985-04-29
301CGS OPERATING LLC19,0001984-12-21
101CGS OPERATING LLC112,5001984-06-05
401CGS OPERATING LLC112,5001983-07-07