Most of the action seemed to be focused off the field as Blackpool's owners - the Oysten family - listen to bids for the club.
Local businessman David Haythorn had already tabled a £7million offer for the League One strugglers and now Latvian banker Valery Belakov has come in with his own offer.
In the first period the boardroom action outgunned a dour display by both sides in a half littered with niggling fouls and poor passing in a difficult wind.
Oldham had a great chance to go ahead in the 10th minute but Luke Beckett should have done better with a downward header that drifted a yard wide.
Oldham's main problems lay in midfield where they were constantly harried off the ball with former Seasiders favourite Richie Wellens having little impact on the game.
Blackpool's first chance came in the 42nd minute when Keigan Parker went wide with a low volley.
The decisive goal came three minutes into the second half courtesy of the game's brightest talent.
Nineteen-year-old Lewis Gobern - on loan from Wolves - took a pass from Peter Clarke in his stride and glided past two defenders before striking a crisp 25-yard shot past Chris Day.
Blackpool turned on the pressure and Day had to turn a Parker drive on to the bar and then was in action again blocking Parker's near post effort.
Oldham mounted a series of late attacks and Blackpool were indebted to keeper Lee Jones who acrobatically tipped Chris Swailes' 84th minute thunderbolt over the bar.