Dear Dawn, "oil" in urine can be due to passage of chyle in urine. Chyle is tissue fluid which carries fat and nutrients absorbed from the bowels to liver for digestion. At times, the kidneys leak fatty substances into urine due to problems in their filters (can occur in lupus). Chyluria
can occur when dilated veins carrying chyle rupture into urinary system
(usually kidney passages). Filter problems can be handled by nephrologist
, chyle problems need to be treated by urologist
. Consult either for initial diagnosis. Take care.