FOSTER, W. L. #5

Oil // district 10 // lease#2911

op: SABINAL ENERGY OPERATING, LLC

cum_oil

987k BBL

cum_gas

0 MCF

wells

29

production

1993-01 — 2026-03

peak_month

2008-05

-- production_history

cum_oil: 987,357 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

6,425 BBL/mo

Di (annual)

82.0%

b-factor

1.7

EUR

641,451 BBL

R-squared

0.893

type

hyperbolic

-- wells (29)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
23SABINAL ENERGY OPERATING, LLC23,5002022-07-01
13SABINAL ENERGY OPERATING, LLC23,0002021-03-01
15SABINAL ENERGY OPERATING, LLC23,0002021-03-01
26SABINAL ENERGY OPERATING, LLC23,5002021-03-01
7RSABINAL ENERGY OPERATING, LLC23,0002021-03-01
10ENERGEN RESOURCES CORPORATION23,1002009-11-13
10WENERGEN RESOURCES CORPORATION23,1002009-11-13
29ENERGEN RESOURCES CORPORATION13,5002008-08-20
24ENERGEN RESOURCES CORPORATION13,5002007-10-10
25ENERGEN RESOURCES CORPORATION13,5002007-10-10
27ENERGEN RESOURCES CORPORATION13,5002007-10-10
22ENERGEN RESOURCES CORPORATION13,5002006-12-28
21RCHEVRON U. S. A. INC.23,2001994-08-29
17RCHEVRON U. S. A. INC.33,4001994-02-02
18RWCHEVRON U. S. A. INC.13,4001986-02-26
19RWCHEVRON U. S. A. INC.13,4001986-02-26
16CHEVRON U. S. A. INC.13,4001981-10-20
8RCHEVRON U. S. A. INC.13,0001979-07-10
12WCHEVRON U. S. A. INC.23,1001978-11-20
14WCHEVRON U. S. A. INC.13,1001978-10-10
11CHEVRON U. S. A. INC.13,1001978-06-19
6RCHEVRON U. S. A. INC.13,1001978-02-10
9CHEVRON U. S. A. INC.13,1001978-01-19
9WCHEVRON U. S. A. INC.13,1001978-01-19
142-227-00315--------
2R42-335-01574--------
2W42-335-01393--------
3R42-335-01626--------
5R42-335-01338--------
EOF // data source: Texas Railroad Commission // 2026