Westbrook had said he wanted to remain in Oklahoma City, but some mystery remained about why he had not signed it.
Wojnarowski noted Friday that Westbrook now owns the "biggest total contract" in league history since there are six years and $233 million left on his deal.
Even though Westbrook signed a three-year, $85 million extension just last summer, he met the qualifications for the super-max contract due to a designated player veteran extension allowed by the new National Basketball Association collective bargaining agreement.
Russell Westbrook appears to be committing himself to the Oklahoma City Thunder for the foreseeable future. Soon thereafter, Westbrook agreed to a contract extension through 2018-19, the final season being a player option. Anthony has no loyalty to Oklahoma City, and he only agreed to join the Thunder when the New York Knicks couldn't work out a trade with the Houston Rockets or Cleveland Cavaliers. In adding Paul George and Carmelo Anthony to the fold, the team is suddenly considered perhaps the biggest threat to Golden State's dynasty - a belief that certainly played a role in Westbrook's decision to re-up for the long haul. The NBA All-Star guard said in the statement that he feels "so honored" to stay a part of the Thunder organization.
"When you play in Oklahoma City you play in front of the best fans in the world, I'm looking forward to bringing everything I've got, for them, this city and for this organisation". Russell Westbrook is ideal. "We are extremely fortunate to have an athlete, competitor and person such as Russell wear the Thunder uniform".
Westbrook was the No. 4 overall pick in the 2008 National Basketball Association draft out of UCLA, and rapidly developed into one of the NBA's biggest stars.
Westbrook made use of the Designated Player Veteran Extension, or "supermax" deal, which allowed the reigning Most Valuable Player to garner 35 percent of the salary cap and five extra seasons. The Thunder is one of three National Basketball Association franchises (Houston and San Antonio) to have finished the regular season with a.500 or better record in each of the last eight seasons.
Westbrook has career averages of 22.7 points, 7.9 assists and 6.2 rebounds.