ST. CHARLES CO.

Oil // district 4 // lease#13798

op: HILCORP ENERGY COMPANY

cum_oil

36k BBL

cum_gas

0 MCF

wells

2

production

2013-07 — 2026-03

peak_month

2013-07

-- production_history

cum_oil: 36,169 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,132 BBL/mo

Di (annual)

54.4%

b-factor

0.5

EUR

46,551 BBL

R-squared

0.665

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
94HILCORP ENERGY COMPANY215,0002016-10-26
90HILCORP ENERGY COMPANY19,4802013-04-25
EOF // data source: Texas Railroad Commission // 2026