The club was founded in 1909, under the name of United Ploiești, by the American and Dutch functionaries from the Petroleum Refineries, under the presidency of engineer Jacob Koppes.

The first players of the club were: Braizer, the Mayor brothers, Bider, Kolman, van Beck, Meyer, Bolton.

During this period, its best performance was to win the South League Championship in 1931, using the following players: Zaharescu – Barasch, Ionescu Nălae – Vasilescu (Muller), Dancher, Popescu, Obretcovici, Rheingruber, Georgescu, Taryan, I. Niculescu, Atanasiu.

In the national championship tournament, 1930–31, te team reaches the semifinals where it loses 2–3 to UD Reșița, and is eliminated.

Dragomirescu, Grun, Pascaru, Epure, T. Georgescu, Bujor, Farkas, Criciotoiu, Boldiș, Radu Florian, and in the period of World War II: Ioanid, Panovschi, Boacă, Șperlea, Bușac, T. Păunescu, I. Manolescu, N. Antonescu, V. Bărbulescu, Lipănescu, E. Vlaiculescu, Gh.

In 1946, after a double play-off match against Gloria CFR Galați (3–0, 2–1), the team promoted to the First Division, the players used were: C. Mihăilescu, Balmuș, Hrisafi, Matroc, Șt.

In August 2018, the club was refounded and enrolled in Liga C – Prahova (Mizil Series), the equivalent of the 7th tier.

[1] At the end of the season it finished on the second place,[2] which allowed the club to promote to the 6th league Liga B – Prahova, East Series.