EAST TEXAS OIL COMPANY FEE "B"

Oil // district 3 // lease#21875

op: 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
EOF // data source: Texas Railroad Commission // 2026