Fracking accident leaks benzene into Colorado stream

[Buzz Clik]

12. Let me break it down:

A plant for fracked natural gas processor Williams Energy, near Parachute, Colo.
A plant? What kind of plant? This is all done on the fly in the field.

spilled an estimated 241 barrels of mixed natural gas liquid into the ground
Natural gas is a gas, not a liquid, so we're talking about the fracking fluids. But, there's the injection fluid and the produced water. Which one? (Neither requires a plant)

some of which eventually washed as benzene into Parachute Creek.
This is really poorly phrased. Analytical chemists often make reference to compositions as "as xxxx", often converting everything to a common base: "sulfate as sulfur" or "nitrogen as nitrate". That make no sense in this context, so we're left to try to guess what the writer is trying to say. All the other stuff went away? Not likely. Benzene is volatile and is more likely to evaporate than the water in which it's dissolved.

I'm going with this: A storage facility near Parachute, Colorado, owned by Williams Energy and containing various ingredients for fracking injection fluids suffered a leak of 241 barrels of prepared injection fluids. Some of the fluids containing benzene contaminated Parachute Creek.