MADEIRA, Portugal, May 11, 2012 (AFP) - Wilson, yet to drop a shot after two rounds, leads from Swedish pair Magnus A. Carlsson and Joakim Lagergren, who both had rounds of 66, and England's Andy Sullivan, who hit a 64.
"I played nicely," said the 31-year-old Wilson, who was in the European Team at the 2008 Ryder Cup at Valhalla and is a nine-time runner-up on the Tour.
"The fact I haven't had a bogey for two rounds shows I'm playing solidly and sensibly."
Sullivan, a Walker Cup player in 2011, also had a bogey-free day and attributed his superb round, which featured six birdies and an eagle, to an improved putting technique.
"It's just great to see the ball rolling into the hole," said the 24-year-old.
"I'm hitting the ball nicely. It's the first time I've been in this position so I'm just going to take it as it comes and try and enjoy it.
"The only thing I can do is keep doing what I've been doing, as it's worked so far."
Leading scores from EPGA Madeira Islands Open after the second round on Friday (GBR/IRL unless stated; par-72):
131 - Oliver Wilson 66-65
132 - Andy Sullivan 68-64, Magnus A Carlsson (SWE) 66-66, Joakim Lagergren (SWE) 66-66
134 - Sihwan Kim (NOR) 68-66
135 - Richard Bland 68-67, Charlie Ford 67-68, Ricardo Santos (POR) 68-67, Morten Orum Madsen (DEN) 66-69
136 - Carlos Del Moral (ESP) 69-67, Alvaro Velasco (ESP) 64-72, Hans Peter Bacher (AUT) 67-69, Tommy Fleetwood 66-70, David Dixon 68-68, Lloyd Kennedy 71-65
137 - Alex Haindl (RSA) 69-68, Thomas Norret (DEN) 69-68, Jarmo Sandelin (SWE) 70-67, Knut Borsheim (NOR) 68-69, Alastair Forsyth 69-68, Matthew Baldwin 67-70
138 - Gary Orr 69-69, Shiv Kapur (IND) 70-68, Sion E Bebb 69-69, Chris Paisley 69-69, Ben Parker 66-72, Jamie McLeary 69-69, Jordi Garcia (ESP) 72-66, Alessandro Tadini (ITA) 70-68, Andrew McArthur 70-68, James Heath 69-69, Andreas Harto (DEN) 67-71, Christopher Doak 70-68