​TEVERRA is developing an innovative downhole system for direct measurement of in-situ stresses. It will have huge impacts on improving accuracy and validity of the designs and models used for subsurface operations including drilling, completions, stimulation, injection, and reservoir management. The lack of sufficiently reliable knowledge of in-situ stresses costs the energy industry billions of dollars every year. These losses are associated with non-productive time during drilling caused by stress-related problems; poor well design including trajectory, casing, and mud designs; failure of hydraulic fracturing treatments due to incorrect estimation of the pressure required to breakdown zones; erroneous prediction of fracture dimensions/direction; poor evaluation of the shear strength/conductivity of natural fractures; flawed placement of parent and child wells; well integrity issues, and lack of understanding of the risks during production.