options

can someone expain why did they do unlisted options on a pro rata entitlements ,not many companyies do this that way,most of the time they are listered options to trade asap on market ,is it a way to stop predatory buying . or is it to control dilution of shares and control the share registry any thoughts would be nice ,im very excited with the way the frac is going hope we get a sugar loaf style oil gas field go tex...IMHO