There is a bit of info in Brett-James’ “Ball of Fire”, the history of 5th Indian Division in WW2. Force ‘E’, or Oasis Force as it was also known as far as I know, was the southern hook of the Crusader operation, aiming for the southwestern corner of Cyrenaica. In the end it was too weak to achieve much more than a serious headache for Axis commanders, although its presence in the rear of Panzergruppe Afrika may have contributed to the decision to abandon the Gazala line on 17 December 41.
Read about mid-page here.
The whole book is worth reading too.
Start from here.