They have put out a press release about possible reserves.
4. Energy industries: Computed or estimated quantity of hydrocarbons or minerals that can be extracted from known fields at an economical cost. The major classifications of reserves according to the level of confidence in the estimate are: (1) Proven: Extensively sampled reserved estimated from seismic data and exploratory holes drilled. (2) Recoverable: Estimated from reservoir pressure and density of strata. (3) Probable: Rough estimate of quantity and quality of the item. Also called indicated reserves. (4) Possible: Estimate based on unverified existence. Also called inferred reserves.