The 21-year-old Fogarty, who has kicked 39 goals in 33 games since being drafted with pick 12 in 2017, has proven himself to be one of the best set-shots for goal in the league.
“I’ve enjoyed my first three-and-a-half seasons at Adelaide and I’m seeing improvement from working on my game and with my coaches,” Fogarty said.
“I love the Club, I love the team and believe in where we are headed, we are a young group developing together and I’m looking forward to being a part of the future.”
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Murphy, who has played 52 games since joining the Crows in 2017 as an SANFL development player, is currently recovering from ankle surgery.
The promising start to his season was interrupted by a syndesmosis injury suffered in the round 8 Showdown.
“I’m tracking as well as possible with my ankle rehabilitation and I’m looking forward to hopefully returning to the field soon.”
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Adelaide General Manager List Management and Strategy Justin Reid spoke on the re-signings.
“We are obviously really pleased that Darcy and Lachy have both re-signed and bought into the direction we are headed,” he said.
“They are young and exciting players who took different paths to get to our Club but have worked hard to establish their place in the team and they are an important part of our future.”
Fogarty is set to run out in Adelaide's clash against St. Kilda on Saturday night, whilst Murphy is expected to be available for selection in 5-6 weeks.