That is Shelby County and I would have to guess it is pipeline, most likely. Southwestern has been drilling the Harris B #1H south of FM 353 and west of Hwy 87.
I am very interested in this area also. I own land on the other side of the road from this activity and would be interested in any information regarding this also.
I was told a couple of weeks ago that a new pipeline was going thru that area and that there will be a transfer station or compressor station located on that site. Of course the site could be just a staging area for the pipeline. More than one source has heard the compressor station was going in.