Last year there was no doubt which sector dominated our list of companies with the most dramatic three-year explosions in revenue, profits, and stock price (see our methodology): 25 of the 100 names on our 2014 list produced, moved, refined, sold, or serviced oil and gas.
This year the number is seven, thanks to the plunge in energy prices. But the collapse—call it the Great Shale Eclipse—opened the door for a wave of newbies on the list. Most notable: Facebook appears for the first time.
As always, the list offers no shortages of story lines, including the inexorable rise of health care and the continuing housing rebound, along with surprise entries, such as the Texas Pacific Land Trust, which is still selling off assets from an 1888 railroad bankruptcy. It proves what boom-and-bust oil companies already knew: America is the land of comebacks.
To see the full 100 Fastest-Growing Companies list, visit fortune.com/100-fastest-growing-companies.
—By Scott DeCarlo, Douglas G. Elam, Orlaith Farrell, Vivian Giang, Kathleen Smyth