SORRELL "D"

Oil // district 9 // lease#16665

op: W.R. GUFFEY LLC

cum_oil

3k BBL

cum_gas

0 MCF

wells

2

production

2008-09 — 2016-06

peak_month

2009-02

-- production_history

cum_oil: 3,250 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

189 BBL/mo

Di (annual)

173.8%

b-factor

0.8

EUR

4,240 BBL

R-squared

0.794

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2GUFFEY, WM. R.12,3502008-09-08
1GUFFEY, WM. R.12,3502008-03-07
EOF // data source: Texas Railroad Commission // 2026