He had finished with Shiloh and was on his way to the bunkhouse when Hunt Rennie hailed him.
He was still working on Shiloh when Hunt Rennie came up to him. 
mnli hypothesis: He was still working on Shiloh when Hunt Rennie came up to him.  premise: He had finished with Shiloh and was on his way to the bunkhouse when Hunt Rennie hailed him.