Fire?

I was watching TV this evening in my room, and decided to go and check my mail. As I went through the curtain into Brents office, I noticed an orange glow from his window, which faces the rail yard. This is the view from the window.

It's kind of hard to tell, but it looks like the EJ&E rail road is burning off a gas line, or something. There's a pipe coming out of the ground, and theres a large torch like flame coming out of it. It's been burning for more than 35 mintues. Weird. I wonder what they're doing.