MCWILLIAMS 207

Oil // district 8 // lease#30172

op: QUAIL WELL SERVICE, INC.

cum_oil

5k BBL

cum_gas

0 MCF

wells

4

production

2008-08 — 2026-03

peak_month

2009-03

-- production_history

cum_oil: 4,632 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

563 BBL/mo

Di (annual)

883.1%

b-factor

1.2

EUR

7,098 BBL

R-squared

0.840

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4QUAIL WELL SERVICE, INC.11,8162009-02-20
6QUAIL WELL SERVICE, INC.11,8512009-02-13
3QUAIL WELL SERVICE, INC.11,8072008-10-02
1QUAIL WELL SERVICE, INC.11,8352008-04-28
EOF // data source: Texas Railroad Commission // 2026