CASTLEBERRY

Oil // district 6 // lease#12569

op: SONAT EXPLORATION COMPANY -TYLER

cum_oil

7k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2003-12

peak_month

1994-01

-- production_history

cum_oil: 6,732 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

105 BBL/mo

Di (annual)

22.6%

b-factor

0.0

EUR

5,528 BBL

R-squared

0.396

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3MACHIN, ART & ASSOCIATES, INC.17,9001988-06-09
EOF // data source: Texas Railroad Commission // 2026