Rechnerhand, there seems to be no specifics on the sales volume (other than total payments received). Such data is probably seen as trade secret to avoid divulging specific pricing information to the competition.
With that said, it is worrisome that BSM's after tax loss for 2018 was $3,066,664. Given the increase in production and minimal investment in capex, one would have hoped that BSM would at least be cash flow positive.
BSM Price at posting:
1.1¢ Sentiment: Buy Disclosure: Not Held