MATTHEWS, WATT R., ETAL

Oil · District 8 · Lease #4726

Operator: LEFFEL'S, INC.

Cum Oil

89k BBL

Cum Gas

0 MCF

Wells

13

Production

1993-01 — 2026-03

Peak Month

2007-06

Production History

Cum Oil: 88,876 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

680 BBL/mo

Di (annual)

29.4%

b-factor

0.2

EUR

34,478 BBL

R-squared

0.908

type

hyperbolic

Wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9LEFFEL'S, INC.11,4002014-05-21
18LEFFEL'S, INC.11,9992008-03-26
2LEFFEL'S, INC.11,4302007-05-01
17LEFFEL'S, INC.11,9992007-02-16
16LEFFEL'S, INC.11,9992004-03-04
15LEFFEL'S, INC.11,9992000-08-04
14REEF OIL CORPORATION11,1001982-02-22
142-447-01606--------
1042-447-30485--------
442-447-01859--------
542-447-80065--------
642-447-20099--------
742-447-20360--------
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