Conoco Phillips no oil revenue for May?

Hey all, Just received the normal notification from energylink that my ConocoPhillips monthly check posted but there is no oil revenue this month only gas. This has never happened before ! Did this happen to anybody else ? Or anyone know why ?

Need some more info to properly respond - how much oil (BO) per month were you being paid for in previous months? If monthly oil volumes are low, it is possible that there was not an oil load (or about 150 BO) picked up for the month in question.

Conoco Phillips has been contacted and has informed me that these properties have been sold to USEDC so now I know !