H1B Transfer - dilema

[TransferH1b]

HI All,

I came to US on H1B with company A and the Company A petition valid unitl Nov 2010 . I worked with Cmmpany A for almost an year and then Company B field H1B transfer and I am working with Compamy B now. Petition filed bu Company B valied unitl sep 2011.

My Job with Company B going to end soon.

Now can I go back to Company A ?. Do they need to do H1B trnasfer again to me, or can I continue with the old petition which is valid until Nov 2010?
Are they need to file extension?

Kindly please help with your sugesrions!

[shervin143]

You can work for Company A if they haven't evoked your petition yet. Of course they need to file for the extension after Nov 2010.