DUVAL RANCH, SEC. #58

Oil · District 4 · Lease #1696

Operator: SPEED, F. MICHAEL, TRUSTEE

Fields: LUNDELL

Cum Oil

89k BBL

Cum Gas

0 MCF

Wells

9

Production

1993-01 — 2026-03

Peak Month

2000-12

Production History

Cum Oil: 88,564 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

436 BBL/mo

Di (annual)

9.0%

b-factor

0.3

EUR

71,890 BBL

R-squared

0.728

type

hyperbolic

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
25DEWBRE, JERRY C., TRUSTEE11,6002004-02-17
24DEWBRE, JERRY C., TRUSTEE21,6002000-08-25
23DEWBRE, JERRY C., TRUSTEE11,6002000-05-25
22MANFRED PRODUCTION COMPANY11,7501986-04-01
1042-131-05493--------
1242-131-05495--------
542-131-05488--------
642-131-05489--------
842-131-05491--------
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