In the 1974–75 season, the first nationwide league of clubs was formed, and Al-Mina'a were merged with another club called Al-Bareed to form a club called Al-Muwasalat which finished third place in the league. Al-Mina'a began to participate in the Iraqi Premier League as an independent club in the 1975–76 season under the leadership of coach Najem Abdullah, and finished the season in fourth place. The team was not well under coach Faleh Hassan Wasfi in the 1976–77 season, and finished in sixth place. The first match in Iraqi league history was televised, was played this season between Al-Mina'a and Al-Zawraa at Al-Shaab Stadium on Friday, March 11, 1977, was ended 5–1 for Al-Zawraa. The 1977–78 season was the golden season for the team when they won the league title, and the title moved for the first time from the clubs of the capital, Baghdad, to Basra under coach Jamil Hanoon. The team collected 21 points by winning eight matches and drawing in five matches; they did not lose any matches in this season. The Al-Mina'a player Jalil Hanoon won the top scorer award with 11 goals in the league. The champions' squad included the following players: Sattar Farhan, Sameer Nori, Aziz Abdullah, Sabeeh Abed Ali, Abdul Redha Hussein, Rahim Karim, Khalil Ibrahim, Hadi Ahmed, Alaa Ahmed, Ali Abdul Zahra, Abdul Razzak Ahmed, Jalil Hanoon, Hassan Abdul Hussein, Adnan Saddam, Raad Abdullah and Hadi Jabbar. Before the league start, Al-Mina'a played in a pre-season football friendly tournament in Arbil, and the team played against Arbil and won 0–6, and won against Salahaddin in two matches 7–0 and 8–0. The first match of this league season was on October 1, 1977, and the last match was on March 31, 1978. Al-Mina'a started the first two matches under coach leadership Faleh Hassan Wasfi, who resigned after being drawn against Salahaddin 0–0 and Al-Sinaa 0–0, the team played after that under the leadership of coach Jamil Hanoon, who took over the job, and led the team to a series of successes, began to win against defending champions Al-Zawraa 2–3 in Baghdad.