TOUCHSTONE

Oil · District 8 · Lease #28502

Operator: SOJOURNER DRILLING CORPORATION

Cum Oil

11k BBL

Cum Gas

0 MCF

Wells

1

Production

1998-06 — 2013-10

Peak Month

1998-07

Production History

Cum Oil: 10,964 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

282 BBL/mo

Di (annual)

50.5%

b-factor

0.3

EUR

9,390 BBL

R-squared

0.782

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3SOJOURNER DRLG. CORP.35,2501997-05-01
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