Urgent help needed - L1 Visa expired, I-129S expired, I-94 Valid

[ptg_ram24]

Hi,

This might be a dumb question, so apologies in advance.

I am on L1 B Blanket visa and below are my visa related expiry dates:

I129S - expired on 1-JUL-2015
Visa - expired on 1-JUL-2015
I-94 - Valid till 25-JUL-2017

1) Since my I129S petition has expired in JUL-15, can I stay and work in USA with expired petition, expired visa and with valid I-94?

2a) If answer is yes, do I need to do anything?
2b) If answer is no, what should be my next step?

Appreciate your response.

Best regards,

-Ramendra