[1] Starting with the 2011 season, the team competes in the Gridiron Developmental Football League, playing in the Midwest-North Division in the GDFL's Impact Conference.

[4] After beating the Texas Bulldogs 84–6 in the semi-final game,[4] the Thunder rolled to a 29–6 victory over the Austin Gamebreakers in World Bowl II on October 18, 2008, at Independence Stadium in Shreveport, Louisiana.

[10] In 2009, the team posted another unbeaten record and went on to defeat the Dallas Diesel 41–12 in World Bowl III on August 29, 2009, at LaFortune Stadium in Tulsa.

[13][14] During the season, the Thunder hosted the Monterrey Institute of Technology and Higher Education Borregos football team for an exhibition.

Additionally, the Thunder set a national scoring record with a 104–6 victory over the Austin Gamebreakers in the WFL semi-finals.

Defensive end Jeremy Gray also set the national Minor League sack record with 36 during the regular season.

The Thunder's lowest point total during the season came during World Bowl III, a 41–12 victory over the Dallas Diesel.

After an 11–0 regular season in 2010 and a playoff win over the Fort Worth, Texas-based Eagle Mountain Marauders, the Thunder competed in their third straight World Bowl on July 31, 2010, where they faced the Des Moines Blaze at the East Tulsa Sports Complex in Tulsa, Oklahoma.

[16][18] The Thunder defeated the Blaze, 52–10, to claim their third consecutive league championship and extend their unbeaten streak to 40 games.

After the dissolution of the league Head Coach Bruce Madden resigned and ownership changed hands.

[19] On August 7, the Thunder broke two league records in their game against the Kansas Diamondbacks: points scored (96) and largest win margin (90).

[20] After defeating the St. Louis Bulldogs on August 13, the Thunder finished the 2011 regular season with a perfect 9–0 record, winning the Midwest North Division and clinching the top seed in the playoffs, and were ranked as the number 1 team in the GDFL.

The Oklahoma Thunder travelled to Tara Stadium in Atlanta, Georgia, as the visitor to play the Xtreme Conference champion Chambersburg Cardinals in the GDFL Championship game.

[21] For the 2012 season, the Thunder was able to clinch the Mid-West Division Championship by defeating the OKC Diamondbacks in the second round of the playoffs.

Thunder wins the division with a victory over the Oklahoma City Bounty Hunters in the second round of playoffs.

Head coach Rashid Lowe was inducted into the Minor League Football Hall of Fame Class of 2018 In 2008, the team played its home games at Booker T. Washington Stadium and S.E.

[1] For the 2009 season, home games were moved to Exchange Bank Stadium in nearby Skiatook, Oklahoma.