Phoenix is possibly inspired by the company Love's, as its in-game locations correspond to Love's locations in real-life, and its previous branding as Heart's heavily resembles the logo of Love's.
Release History
Phoenix originally debuted as Heart's.
In update 1.45, Heart's was rebranded to its current form.
In update 1.51, Phoenix became a deliverable company after several Gallon Oil and Vortex unloading points were transferred to Phoenix's ownership.
In update 1.53, Phoenix became a part of the base game with new locations being added to California.