Sestito, a 27-year-old center, was held without a point in 18 games with the Devils last season. He also skated in one Stanley Cup Playoff game. He had 19 points and 127 penalty minutes in 45 games with the club's American Hockey League team, the Albany Devils.
In 64 NHL games with the Oilers and Devils, Sestito has three points -- all assists.
Barch, a 32-year-old right wing, had five points and 114 penalty minutes in 51 games with the Dallas Stars and Florida Panthers last season.
A 1998 fourth-round pick of the Washington Capitals, Barch has 12 goals, 39 points and 669 penalty minutes in 304 games with the Stars and Panthers.