BIG LAKE (SPRABERRY) UNIT

Oil · District 7C · Lease #12675

Operator: HEC PETROLEUM, INC.

Cum Oil

56k BBL

Cum Gas

142k MCF

casinghead

Wells

15

Production

1993-01 — 2006-03

Peak Month

1994-03

Production History

Cum Oil: 56,410 BBL Cum Gas: 141,786 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

883 BBL/mo

Di (annual)

22.7%

b-factor

0.0

EUR

46,664 BBL

R-squared

0.902

type

exponential

Operator History (from monthly production reports)

2006-04 — 2009-02 CHEVRON MIDCONTINENT, L.P. 35 mo
2002-01 — 2006-03 HEC PETROLEUM, INC. 51 mo
1994-12 — 2001-12 HALLWOOD PETROLEUM, INC. 85 mo
1993-01 — 1994-11 HALLWOOD ENERGY CORPORATION 23 mo

Wells (15)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
13CHEVRON MIDCONTINENT L.P.17,6001979-02-20
2CHEVRON MIDCONTINENT L.P.17,7001978-07-18
10CHEVRON MIDCONTINENT L.P.17,6501978-07-13
14CHEVRON MIDCONTINENT L.P.17,6501978-07-13
15CHEVRON MIDCONTINENT L.P.17,6501978-07-13
9CHEVRON MIDCONTINENT L.P.17,6501978-07-13
1CHEVRON MIDCONTINENT L.P.17,7001978-06-21
7CHEVRON MIDCONTINENT L.P.17,7001978-06-21
8CHEVRON MIDCONTINENT L.P.17,7001978-06-21
3CHEVRON MIDCONTINENT L.P.17,6001978-03-27
4CHEVRON MIDCONTINENT L.P.17,6001978-03-27
5CHEVRON MIDCONTINENT L.P.17,6001978-03-27
12CHEVRON MIDCONTINENT L.P.17,6001977-12-12
6CHEVRON MIDCONTINENT L.P.17,6501977-12-05
11CHEVRON MIDCONTINENT L.P.17,7001977-06-20