UPDATE: USCIS will resume premium processing on petitions for H1B extension on July 13, 2015. The Agency had suspended H1B extension premium processing in May 2015.
On May 26, 2015, USCIS began a temporary suspension of H1B extension premium processing until July 27, 2015. During this period, USCIS did not accept Premium Processing Requests for H1B extensions of stay. However, they continued premium processing of H1B Extension petitions with filing dates prior to May 26, 2015.