Oilers Off-Season Movement Tracker

Here are the updates on all the Oilers moves this offseason, including additions and subtractions.
Oilers Group 2 Free Agents: Leon Draisaitl (signed), Joey Laleggia (signed), Dillon Simpson (signed), Bogdan Yakimov (signed in KHL; Oilers retain rights)
Oilers Group 3 Free Agents: David Desharnais (to NYR), Andrew Ference, Justin Fontaine, Mark Fraser, Jonas Gustavsson (to Sweden), Matt Hendricks (to WPG)
Group 6 Free Agents: Jordan Oesterle (to CHI), Tyler Pitlick (to DAL)
Other UFAs: Benoit Pouliot (to BUF), Anton Lander (to KHL), Eetu Laurikainen (to Finland), David Musil, Zach Pochiro, Jere Sallinen (to Sweden), Henrik Samuelsson
ADDITIONS:
- Oilers signed C Chris Kelly to a pro tryout contract on September 10 >> READ - Oilers signed D Dmitri Samorukov to a three-year entry-level contract on September 7 >> READ - Oilers signed F Leon Draisaitl to an eight-year contract extensions on August 16 >> READ - Oilers signed F Kailer Yamamoto to a three-year entry-level contract on August 10 >> READ

SUBTRACTIONS:
CONTRACTS EXPIRING IN 2018:
CONTRACTS EXPIRING IN 2019:
CONTRACTS EXPIRING IN 2020:
CONTRACTS EXPIRING IN 2021:
CONTRACTS EXPIRING IN 2023:
CONTRACTS EXPIRING IN 2026:
Here is some more info on the types of free agents and compensation (from the NHL):
FREE AGENTS SUBJECT TO COMPENSATION AND RIGHT TO MATCH - GROUP 2
These players have been tendered a qualifying offer by their respective Clubs and are subject to draft-choice compensation and right to match. The draft choice compensation scale is based on compensation offered by the new Club:
OFFER / COMPENSATION
$1,239,226 or below / None
Over $1,239,226 to $1,877,615 / Third-round choice
Over $1,877,615 to $3,755,233 / Second-round choice
Over $3,755,233 to $5,632,847 / First-round and third-round choice
Over $5,632,847 to $7,510,464 / First-round, second-round and third-round choice
Over $7,510,464 to $9,388,080 / Two first-round choices, one second- and one third-round choice
Over $9,388,080 / Four first-round choices
UNRESTRICTED FREE AGENTS - GROUP 3
These players have qualified for Group 3 Free Agency (age 27 or older or with at least seven Accrued Seasons) and are Unrestricted Free Agents.
UNRESTRICTED FREE AGENTS - GROUP 6
These players qualify for unrestricted free agency, having met the requirements for Group 6 free agency. This group is defined as players whose contracts have expired, are age 25 or older, have completed three or more professional seasons, and (i) in the case of a player other than a goaltender, have played fewer than 80 NHL games (regular-season and playoff), or (ii) in the case of a goaltender, have played fewer than 28 NHL games (regular-season and playoff). Please note that these amounts are subject to pro-rating due to the 48-game season in 2012-13.