|Specsavers County Championship Division One, Kia Oval, day two|
|Lancashire 287: Clark 56; S Curran 4-61, Meaker 3-83|
|Surrey 354-6: Burns 88, Sangakkara 67, Davies 59, Sibley 56; Jarvis 2-61|
|Surrey 7 pts, Lancashire 4 pts|
Surrey ended day two with a 67-run lead as they reached 354-6 in reply to Lancashire's 287 all out at The Oval.
Openers Rory Burns (88) and Dom Sibley (56) put on 160 for the first wicket before pace bowler Kyle Jarvis (2-61) dismissed both in consecutive overs.
Kumar Sangakkara's 67, including a 47-ball fifty, took Surrey towards parity.
Nathan Buck struck with the new ball to have Sangakkara caught at gully, while Steven Davies (59) was dismissed by Arron Lilley shortly before the close.
That breakthrough gave Lancashire a second bowling bonus point and some hope of limiting their first-innings deficit.
Veteran Sri Lankan left-hander Sangakkara raced to his sixth Championship half-century of 2016, but fell short of a second hundred, slashing a wide ball to Haseeb Hameed after tea.
Earlier, Burns' seventh Championship fifty of the season had taken him to within 27 runs of 1,000 in the competition this season.
Surrey opener Dom Sibley told BBC Radio London:
"A few of us all could have got big hundreds so that's a little bit of a shame, but everyone's chipped in and we've got a useful little lead that we can maybe build upon.
"The pitch has started spinning a little bit more which is good for us obviously and, if we can extend that lead and put pressure on them, who knows. Every run is important.
"Arron Lilley got a couple to go, but only really out of the foothold and that was from quite wide out. But we have Gareth Batty, one of the best spinners around, so he'll find a way of making those patches work for him."
Lancashire skipper Steven Croft told BBC Radio Lancashire:
"We stuck at it quite well. If they'd had 50 less runs and we'd taken a couple more wickets we'd be in a really good position.
"Kyle Jarvis was slow to start, as we all were, but he came back really well and Nathan Buck held well all day.
"There are two new-ish batsmen at the crease. Hopefully we can blow them away and have a good look at the tail. When it comes to our turn to bat, we need to bat better than we did in the first innings."