Diourbel won their third and recent title under the name SONACOS in 1996 and finished with 52 points, their second highest in the national top level.

SUNEOR Djourbel finished second place in the Second Division behind Dakar-Sacre Coeur and returned once again to Ligue 1 for the 2017–18 season.

SUNEOR went to the continental competition for the first time in 1981, all did not advance up to the first round, they lost to ASEC Mimosas of the Ivory Coast in 1984 in penalty shootouts, Shooting Stars FC from Nigeria 2–0 in the second match in 1984, ASC Police 9–10 in penalty shootouts in 1987 and in 1997 as the CAF Champions League to Morocco's Raja Casablanca 3–1 in the second match.

Their third appearance was successful and defeated US Gorée 1–0 at extra time to win their only Senegal FA cup title in 2001.

Their fourth and final appearance was futile in the following year, the cup match was equally tied one in its entirety, SONACOS scored only one penalty shootout and lost 4–1 to Douanes.