SOUTH TEXAS SYNDICATE -A-

Oil · District 1 · Lease #6497

Operator: WHITING PETROLEUM CORPORATION

Cum Oil

201k BBL

Cum Gas

0 MCF

Wells

5

Production

1993-01 — 2026-03

Peak Month

1993-01

Production History

Cum Oil: 200,649 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

722 BBL/mo

Di (annual)

3.0%

b-factor

0.0

EUR

223,021 BBL

R-squared

0.363

type

exponential

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
22WHITING OIL AND GAS CORPORATION24,8002012-11-28
19AMERICAN COMETRA, INC.22,4001991-12-02
20AMERICAN COMETRA, INC.12,3501991-12-02
14NEWMAN BROTHERS DRILLING COMPANY14,0001984-04-12
13SKINNER CORP-NEWMAN BROS.DRLG.CO12,4001980-04-25
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