Caggiula, a 24-year-old forward, had 11 points (seven goals, four assists) in 29 games with the Oilers this season. He has 49 points (27 goals, 22 assists) in 156 NHL games, all with the Oilers, who signed him as an undrafted free agent in 2016 after he played four seasons at the University of North Dakota.
"I love the way he plays." Blackhawks general manager Stan Bowman said Monday about Caggiula. "I think he's going to complement our team. He's another young forward who brings a lot of energy.
"He's versatile, plays wing, plays center. So, when we had an opportunity to make the deal, I thought we had to take advantage of it."
Garrison, a 34-year-old defenseman, had one goal in 17 games with Edmonton after signing as a free agent Oct. 2. He has 160 points (49 goals, 111 assists) in 555 games with the Florida Panthers, Vancouver Canucks, Tampa Bay Lightning, Vegas Golden Knights and Oilers.
Bowman said it would take Caggiula a few days to get to the Blackhawks due to visa issues. He said Garrison would be put on waivers and would go to Rockford of the American Hockey League if no one claims him.
Manning, 28, who signed a two-year contract with the Blackhawks as a free agent on July 1, had three points (one goal, two assists) in 27 games. He spent his first six NHL seasons with the Philadelphia Flyers and has 46 points (12 goals, 34 assists) in 234 NHL games.
Norell, 23, was selected by Chicago in the fourth round (No. 111) in the 2013 NHL Draft. He is on loan to Djurgardens IF of the Swedish Hockey League after playing the past two seasons with Rockford of the American Hockey League.
Earlier Sunday, the Oilers acquired defenseman Alexander Petrovic from the Florida Panthers for defenseman Chris Wideman and a third-round pick in the 2019 NHL Draft.
Oilers general manager Peter Chiarelli said injuries to defenseman Oscar Klefbom (hand), Kris Russell (undisclosed) and Andrej Sekera (Achilles) brought on the need for the trades. Klefbom and Russell have been on injured reserve since Dec. 13 and Sekera in on long-term injured reserve since Oct. 6 but has been skating and could return soon.
"With the information we know on our injured players, we felt it was time to bring in some established defensemen," Chiarelli said Monday. "Understand that these aren't top four defensemen, but these are solid defenders, they both defend hard, they both move well and it was something we felt we had to do at this point in time."
