I am unclear on what the requirements are for Chapter 11 bankruptcy as it relates to royalty owners. I am currently receiving doucments from 4 companies which have all filed Ch. 11, including Linn Energy, Samson Resources, and Chaparral. I am also receiving bankruptcy documents from SandRidge Energy, including a recent proof of claim (form 410) which lists my company as a creditor. I never received this proof of claim form from the other 3 companies mentioned above. Could any forum members comment on this inconsistency? Thank you!