What do you mean when you say “our” rigs? As far as I know, the rigs are all private property, and not government-owned.
Our; as in=U.S. owned,'off the coast of the United States', as self-described in all of the articles below when this happened.
Chavez Formalizes Seizure of US-Owned Oil Rigs
Chavez Regime Nationalizes U.S. Oil Rigs
Chavez Seizes 11 Helmerich Oil Rigs Amid Pay Dispute (Update1)