Gil displayed decent power, clubbing nine home runsfor the South Atlantic League's Gastonia Rangers in. He made his major league debut in the season opener at twenty years old, going 0-for-3 with a walk in four plate appearances. By late May, however, he was back in the minors with the double A Tulsa Drillers after batting.123 with two runs batted in for the Rangers. He would not return to the majors until the season. On May 3, his first major leaguehome run accounted for the Rangers' lone run in a 5–1 loss to the Seattle Mariners. He followed this up with home runs in his next two games on his way to a career best nine for the season. He also appeared in a career high 130 games, and posted career highs in runs batted in, runs, hits and extra-base hits, while also providing a steady glove at short. A herniated disc in Spring training kept Gil off the opening day roster. By the time he was ready to return, off-season acquisition Kevin Elster had won the starting job, and Gil found himself back in the minors with the Oklahoma City 89ers. He received a call up to the majors that September, and was 2-for-5 in seven plate appearances.
He was once again the Rangers' starting shortstop in, however, inconsistent play led the Rangers to deal him during the off season to the Chicago White Sox for pitchers Al Levine and Larry Thomas. Gil spent his one season in the Chisox organization with the Pacific Coast League's Calgary Cannons, where he batted.248 with fourteen home runs and 69 RBIs. Coincidentally, Gil also spent the season with Calgary after they became a Florida Marlins affiliate, and he was drafted by the Marlins in the minor league draft.
Just as spring training was set to begin, Gil signed as a free agent with the Anaheim Angels. Slated to be the back up to incumbent Gary Disarcina, Gil soon found himself starting when an injury ended Disarcina's season. David Eckstein became the Angels' starting shortstop in, with Gil sliding into a back up middle infielder role. In, Gil actually saw more playing time at second base than he did at short. He had a far more limited role than he had his previous two seasons in Anaheim, however, he made it to the post season for the only time in his career. In game two of the 2002 American League Division Series against the New York Yankees, Gil had an RBI single off Andy Pettitte. In game four, he was 3-for-3 with a run scored. In the Angels' 2002 World Series victory over the San Francisco Giants, Gil went 4-for-5 with a double and a run scored.
Gil pitched once while in the Chicago Cubs organization, once in the Mets organization and once for the Jackals. He pitched a total of four innings, allowing two hits and no earned runs. He played for the Tomateros de Culiacán in the Mexican Pacific League for thirteen seasons throughout his career, and won six championships. He later became manager of the club, winning three championships during the 2014–15, 2017–18, and 2019-20 seasons.
Personal life
Gil was born in Mexico, but grew up in Chula Vista. His mother died while he was in high school. He and his wife, Carly, reside in Keller, Texas with their two children, Mateo and Gehrig. Mateo was drafted in the third round of the 2018 Major League Baseball draft by the St. Louis Cardinals.