EAST TEXAS OIL COMPANY FEE "B"

Oil · District 3 · Lease #21875

Operator: MILESTONE OPERATING, INC.

Cum Oil

430k BBL

Cum Gas

0 MCF

Wells

5

Production

1993-01 — 2026-03

Peak Month

1994-04

Production History

Cum Oil: 429,660 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

4,358 BBL/mo

Di (annual)

13.7%

b-factor

0.0

EUR

379,985 BBL

R-squared

0.680

type

exponential

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9MILESTONE OPERATING, INC.37,5002011-10-03
6MILESTONE OPERATING, INC.67,4002011-05-31
6AMILESTONE OPERATING, INC.67,4002011-05-31
8MILESTONE OPERATING, INC.36,3002010-06-17
7DSTJ CORPORATION26,4001993-12-03
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