SORRELL "C"

Oil // district 9 // lease#16295

op: W.R. GUFFEY LLC

cum_oil

165k BBL

cum_gas

0 MCF

wells

4

production

2007-05 — 2026-03

peak_month

2010-04

-- production_history

cum_oil: 165,469 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,549 BBL/mo

Di (annual)

20.7%

b-factor

0.0

EUR

147,561 BBL

R-squared

0.949

type

exponential

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6GUFFEY, WM. R.12,3502011-08-03
3GUFFEY, WM. R.12,3502009-09-23
2GUFFEY, WM. R.12,3502009-04-22
1GUFFEY, WM. R.22,3502007-02-02
EOF // data source: Texas Railroad Commission // 2026