Possible several 100 bcf!
This from SHY thread by ajootian.
Algrove's answer on the DZR board answers your question pretty well. I was also spooked about adding to my SHY position much after Encana bought Tom Brown, for the reasons Al mentions. But now its pretty clear that Encana is committed to drilling out the Allen Ranch field. This will not a tremendous surprise, keep reading.
While we are throwing around names, you Canadians may not recognize the name Newfield, the company that is drilling holes on a lease immediately adjacent to Allen Ranch (see slides). NFX is a huge, very successful company, something like $3B market cap. Notice that they drilled one well close to Sharon's acreage, the EPC #3, then have staked a location for a new well almost right on the lease borderline between their lease and Sharon's (the light brown lines are lease borders). The Newfield wells, as shown by the 3D seismic image on the slides, are targeting deep Wilcox sands that have the same seismic image as Sharon's does. Fortunately for Sharon, they appear to be in a separate fault block from the fault block that the Hancock #1 well is producing from and the Hancock #2 is drilling into.
A coupla thoughts about this. First of all, a company the size of NFX does not waste their time drilling 17,000 ft. wells unless they have huge potential. This size company has an almost unlimited amount of prospects that they can drill. If you are gonna drill a 17,000 ft. well, it takes the same amount of time & effort to drill one that is targeting 10 BCF of reserves as one going for 100 BCF. So the odds are that the reserves that NFX is targeting (which appear to be similar to the reserves that Sharon is targeting) are an amount that would be considered truly massive as they would relate to SHY, even though SHY only has a 14% interest in the potential reserves. Just to dream a little, the deep sands in the Wilcox formation have been the site of some massive discoveries over the years, some wells have discovered fields that have ultimately produced several hundred BCF of gas.