It’s been a while since I’ve seen a Mobil station, and I’ve never, ever seen one of these:
Robert Mars at Ghosts Of The Great Highway reports that only five of these were actually placed at Mobil stations.
While following up, I discovered that some other oil company had this winged wonder first, and in Texas no less:
The Magnolia Petroleum Company … was founded on April 24, 1911 as a consolidation of several earlier companies. Standard Oil of New York (Socony) exchanged its stock for all of the Magnolia stock in December 1925 though it continued to operate as an affiliate of Socony. Later in 1959 Magnolia was fully incorporated into the Mobil division of Socony. Magnolia’s Pegasus logo, clad in red, has been the emblem of Mobil since the 1930s.
Equestria, for some reason, doesn’t seem to have a whole lot of red pegasi: Cinnamon Swirl here, who’s done two walk-ons (fly-ons?) in three seasons, may be the closest approximation. This is a shot from the second-season episode “A Friend In Deed,” which is the one where Pinkie Pie encourages everypony to smile already, darn ya. Alternatively, there’s Juicy Fruit, who resembles a winged Berry Punch: her color is described as “light plum.”
(The proud Mobil steed turned up Found in Mom’s Basement.)