Question: What is the name of the tournament that was formed by the Big 12 Conference that led to the Nebraska-Texas rivalry?

Context articles: Big 12 Conference Softball Tournament
Big 12 Conference Baseball Tournament
Nebraska–Oklahoma football rivalry
Baylor–Texas Tech football rivalry
Texas A&amp;M–Texas Tech football rivalry
Big 12 Championship Game
2016–17 Kansas Jayhawks men's basketball team
TCU Diamond
Nebraska–Texas football rivalry
2016 Big 12 Conference Women's Soccer Tournament

The Big 12 Softball Tournament (sometimes known simply as the Big 12 Championship) was the conference championship tournament in college softball for the Big 12 Conference (Big 12).
 Since its inception in 1996, the tournament was played at ASA Hall of Fame Stadium in Oklahoma City, Oklahoma.
 The winner received the conference's automatic bid to the NCAA Division I Softball Tournament.
 The Big 12 stopped holding a postseason conference tournament after the 2010 competition.
 In 2017, the Big 12 Conference stated that they would be holding a tournament starting in 2017.
 The tournament will still be hosted at ASA Hall of Fame Stadium in Oklahoma City.
The Big 12 Conference Baseball Tournament (sometimes known simply as the Big 12 Tournament) is the conference championship tournament in baseball for the Big 12 Conference.
 Going back to the original format abandoned in 2005, the tournament consists of two separate four-team double-elimination tournaments.
 The winners of each of those tournament face each other in a one-game match for the championship.
 The winner receives the conference's automatic bid to the NCAA Division I Baseball Tournament.
The Nebraska–Oklahoma football rivalry was an American college football rivalry between the Nebraska Cornhuskers football team of the University of Nebraska and Oklahoma Sooners football team of the University of Oklahoma.
 The rivalry continued in the Big 12 Conference until 2010, though the rivalry was more prominent when both teams were members of the former Big Eight Conference before 1996.
 The annual rivalry effectively ended when Oklahoma was lined up in the Southern division of the newly formed Big 12 to maintain its rivalry with Texas and also its recruiting hotbeds in Texas.
 As both teams won their respective divisions in 2010, they met in the 2010 Big 12 Championship Game.
 Following the 2010 season, Nebraska left the Big 12 for the Big Ten Conference.
 As a result, the 2009 meeting turned out to be the last regular-season scheduled meeting.
 Nebraska's departure left the future of the rivalry in doubt.
 The two teams have agreed to play a home-and-home non-conference series scheduled for 2021 in Norman (to celebrate the 50th anniversary of the 1971 classic) and 2022 in Lincoln.
 They added games in 2029 and 2030 as well.
The Baylor–Texas Tech football rivalry is an American college football rivalry between the Baylor Bears and Texas Tech Red Raiders.
 Each school is a member of the Big 12 Conference.
 The rivalry began in 1929.
 The game has been played every year since 1956 despite the fact that Texas Tech was a member of the Border Intercollegiate Athletic Conference.
 In 1960, Texas Tech joined the Southwest Conference, ensuring the rivalry would continue.
 In 1996, the Southwest Conference dissolved, and both teams were invited, along with the Texas Longhorns and Texas A&M Aggies, with former members of the Big Eight Conference to form the Big 12 Conference.
 From 1947–64, Baylor won 14 of the 15 games.
 From 1996–2010, Texas Tech won 15 straight games.
 In the most recent meeting of the two teams, Texas Tech snapped Baylor's 5 game win streak to bring the series record to a tie.
The Texas A&M–Texas Tech football rivalry was an American college football rivalry between the Texas A&M Aggies football team of Texas A&M University and Texas Tech Red Raiders football team of Texas Tech University.
 The series began in 1927.
 The rivalry had continued uninterrupted since 1957 when the two schools became conference rivals.
 Texas A&M leads the series 37–32–1.
 Texas A&M started the series with a 12–3 advantage while the two teams played each other as non-conference opponents from 1927–1955.
 Texas Tech took a 2–1 record during its probationary membership in the Southwest Conference from 1957–59.
 Texas A&M led the series during the Southwest Conference years (1960–95) with an 18–17–1 record.
 Texas Tech led the series during the Big 12 Conference years (1996–2011) with a 10–6 record.
 Both teams are tied with six games each for the longest winning streak.
 Texas Tech holds the longest uninterrupted winning streak of the series, six games between 1968 and 1973, while Texas A&M has the longest nonconsecutive winning streak, six games in 1927, 1932 and 1942 through 1945.
 Texas A&M currently holds a three-game winning streak but with their departure from the Big 12 Conference in 2012, it is uncertain if the rivalry will continue in the future.
The Big 12 Championship Game is a college football game held by the Big 12 Conference.
 The game was played each year since the conference's formation in 1996 until 2010 and will return starting with the 2017 season.
 From 1996 to 2010 the championship game pitted the Big 12 North Division champion against the South Division champion in a game held after the regular season was completed.
 From 2017 onward, the game will feature the two teams with the best records within the conference.
The 2016–17 Kansas Jayhawks men's basketball team represented the University of Kansas in the 2016–17 NCAA Division I men's basketball season, which was the Jayhawks' 119th basketball season.
 The Jayhawks, members of the Big 12 Conference, played their home games at Allen Fieldhouse and were led by 14th year head coach Bill Self.
 They finished the season 31–5, 16–2 in Big 12 play to win their 13th consecutive Big 12 regular season title, tying UCLA's record for consecutive regular season conference titles.
 They lost in the quarterfinals of the Big 12 Tournament to TCU.
 They received and at-large bid to the NCAA Tournament as a No. 1 seed in the Midwest region.
 The appearance was their 28th consecutive appearance, the longest current active streak and the longest ever in NCAA Tournament history.
 In the Tournament, they defeated UC Davis and Michigan State to advance to the Sweet Sixteen.
 There they defeated Purdue before losing in the Elite Eight to Oregon.
TCU Diamond was a ballpark located on the campus of Texas Christian University in Fort Worth, Texas, and was the home of the TCU Horned Frogs baseball program for four decades.
 The ballpark hosted 1,480 TCU baseball games over 41 years; in the time the Horned Frogs posted an overall 867–605–8 home record.
 The Horned Frogs won Southwest Conference regular season championships in 1963 (co-champions with the Texas), 1966 (co-champions with Baylor, Texas and Texas A&M), 1967 (co-champions Texas), 1972 (co-champions with Texas), and 1994 while calling the TCU Diamond home.
 During the TCU Diamond era, the Horned Frogs played in the Southwest Conference (SWC) (1962–1996), Western Athletic Conference (WAC) (1997–2001), and Conference USA (CUSA) (2002).
 After the opening of Lupton Stadium, the Frogs would go on to achieve a decade of unprecedented success under head coach Jim Schlossnagle in CUSA (2003–2005), the Mountain West Conference (MWC) (2006–2012), and the Big 12 Conference (Big 12) (2013–).
 In the first 13 years after the closing of the TCU Diamond, TCU baseball won 10 CUSA, MWC and Big 12 regular season conference championships, 7 CUSA, MWC and Big 12 conference tournament championships, appeared in 11 NCAA Tournaments, won 5 NCAA Tournament Regional championships, and advanced to the program's first 3 College World Series, making the CWS semifinal round in two of those three trips.
The Nebraska–Texas football rivalry was an American college football rivalry between the Nebraska Cornhuskers and Texas Longhorns.
 The rivalry dissolved when Nebraska left the Big 12 Conference for the Big Ten Conference.
 Due to Colorado, Missouri, Nebraska, and Texas A&M leaving the conference, the Big 12 Championship Game dissolved due to a lack of teams in the conference.
 The last ever Big 12 Championship game was played between Nebraska and Oklahoma in 2010.
The 2016 Big 12 Conference Women's Soccer Tournament was the postseason women's soccer tournament for the Big 12 Conference, held from November 2 to 6, 2016.
 The seven-match tournament was played at the Swope Soccer Village in Kansas City, Missouri.
 The eight team single-elimination tournament consisted of three rounds based on seeding from regular season conference play.
 The West Virginia Mountaineers claimed their third Big 12 tournament title after defeating the TCU Horned Frogs in overtime in the championship match