MCALLISTER UNIT

Oil // district 14 // lease#6840

op: VIOLA PROD., INC.

cum_oil

3k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2007-05

peak_month

1993-07

-- production_history

cum_oil: 3,245 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

258 BBL/mo

Di (annual)

268.2%

b-factor

2.0

EUR

17,771 BBL

R-squared

0.807

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PLAINS PETROLEUM OPERATING CO.220,5001992-04-10
EOF // data source: Texas Railroad Commission // 2026