CALHOUN

Oil // district 13 // lease#27614

op: PRECISION OPERATING INC.

cum_oil

27k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2005-06

peak_month

1993-03

-- production_history

cum_oil: 27,224 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

423 BBL/mo

Di (annual)

21.6%

b-factor

0.4

EUR

35,960 BBL

R-squared

0.817

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PRECISION OPERATING INC.28,1501989-08-09
EOF // data source: Texas Railroad Commission // 2026