Wells Fargo ranked as the top originator of conventional and government-insured mortgages during 2003, according to Home Mortgage Disclosure Act data. Wells generated $305.9 billion of conventional mortgages last year, 93.4 percent of its total production, according to an analysis of HMDA data by Geosegment Systems, a Nashua, NH, research firm. That gave the company a 9.6 percent share of the conventional mortgage market, which totaled $3.197 trillion in the HMDA tally. …