YARBOROUGH

Oil // district 4 // lease#13799

op: HARPER HEFTE, INC.

cum_oil

26k BBL

cum_gas

0 MCF

wells

1

production

2013-07 — 2016-08

peak_month

2013-07

-- production_history

cum_oil: 26,134 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,086 BBL/mo

Di (annual)

91.2%

b-factor

0.0

EUR

27,446 BBL

R-squared

0.899

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HARPER HEFTE, INC.37,6002016-05-31
EOF // data source: Texas Railroad Commission // 2026