Fire Serpent is a 2007 Sci Fi Channel film.
A solar flare from the sun sends a serpentine alien composed of fire to Earth where it begins to wreak havoc throughout a small community. During its search for more fuel to consume it stumbles upon a large military oil reserve. It soon becomes clear that an old man may hold the key to destroying it in the form of a Halogen Gun which may be used as a make-shift fire extinguisher of sorts. A small group of citizens decides to use this technology to make a stand against the creature only to face additional resistance from the beast, as well as a government employer who voluntarily helps the snake because he believes it is spirit of a god.