gruy, h. j. gruy, hjgruy, h j gruy, h.j. gruy and associates, h j gruy and associates, hj gruy & associates, petroleum, oil, gas, engineers, geologists, petrophysicists, consultants, reserves, reserve, reservoir,geophysics, geology, engineering, petrophysics, seismic, unitization, deliverability, geostatistics, geological, geophysical, core, log, hydrocarbon,houston, new zealand, canada, upstream, geoscientist, geoscientific, field, simulation, modeling, well, pipeline, estimate, production, proved, volumetric,stratigraphy, isopach, depositional, porosity, permeability, pay, saturation, fluid, lithology, fracturing, independent, zone, multidisciplinary,certification, appraisal, property, recovery, characterization, study, evaluation, estimation, interpret, evaluate, interpretation, model, pay,stratigraphic, isopachous, structural, deposit, pore, volume, contact, water, saturation, pressure, wellbore, expert, witness, determination, condensate,offshore, stimulation, development, performance, workover, equity, redetermination, exploration, exploitation, prospect, enhanced, injection,horizontal, drilling, coalbed, methane, fair, market, value, outsourcing, outsource, testimony, litigation, forecast, forecasting, mergers, financial,financing, lending, lender, loan, collateral, report, third, party, material, balance, decline, curve, pvt, payout, contact, data, structure, map, reservoirengineering, reservoir engineer, reservoir evaluation, petroleum engineer, petroleum engineering, oil and gas consultant, petroleum reserves, reserveestimate, reserve estimation, reserves estimate, reserves estimation, oil reserves, gas reserves, hydrocarbon reserves, reservoir modeling, reservoirmodel, reservoir simulation, proved reserves, reserves report, reserve report, seismic analysis, geophysical analysis, petrophysical analysis, geologicalanalysis, oil in place, gas in place, decline curve, material balance, probable reserves, probabilistic reserves, possible reserves, expert witne

h.j. gruy and associates is a recognized international oil and natural gas consulting group providing expertise in all facets of the petroleum industry for over 50 years