CROSCO and Company GEOEN d.o.o. have signed a contract for drilling and well operations on December, 10th 2015. Operations on geothermal wells Patkovac-1 and VC-2 started on December, 27th 2015 on geothermal field Velika Ciglena and planned duration is about two and a half months. On this project CROSCO has engaged drilling rig National-403, Well logging service, special operations, cementing and stimulation, well testing, H2S, Slick line service and. Until now, CROSCO has successfully drilled wells Patkovac-1, VC-1 and VC-1A. The beginning of operations on well VC-2 is planned for the end of January 2016.