THOMAS UNIT

Oil · District 11 · Lease #68520

Operator: SCHALK OIL COMPANY, INC.

Cum Oil

297k BBL

Cum Gas

0 MCF

Wells

1

Production

2003-01 — 2026-03

Peak Month

2003-03

Production History

Cum Oil: 297,321 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,396 BBL/mo

Di (annual)

14.7%

b-factor

0.0

EUR

276,640 BBL

R-squared

0.859

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SCHALK OIL COMPANY, INC.15,3002002-11-21
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