STUMHOFFER "A"

Oil // district 9 // lease#12975

op: PIONEER NATURAL RES. USA, INC.

cum_oil

14k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2019-09

peak_month

1993-03

-- production_history

cum_oil: 14,430 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

205 BBL/mo

Di (annual)

23.5%

b-factor

0.3

EUR

14,495 BBL

R-squared

0.914

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PARKER & PARSLEY, LTD.18,6501990-11-12
EOF // multi-state drilling data platform // 2026