Central Fidelity Banks Inc., a Richmond-based bank holding company, last week reported third-quarter net income, after securities transactions, of $3.336 million, a 10.9 percent from last year.

Net income was 61 cents per share for the quarter, down from 67 cents in the same quarter last year, a 9 percent decline, the company said.

The company, which operates six banks with 133 offices in Virginia as well as six subsidiaries providing insurance, mortgage lending, leasing, investment and other bank-related services, had interest income of $15.924 million, down from $17.923 million a year ago.

As of Sept. 30, the company had assets of $1.875 billion and total deposits of $1.458 billion, up 5.3 percent and 3.3 percent respectively from 1979. For the nine-month period, the company had a return on stockholders' equity of 14.84 percent, it said.

Petroleum & Resources Corp., a Baltimore investment company, reported recently that as of Sept. 30, its net assets totaled $278.6 million, up from $192.9 million on the same date last year. During the past 12 months, the company also has made a capital gain distribution equal to $1.82 per share and reduced substantially the amount of convertible preferred stock outstanding.

Net assets per share were $44.77 on Sept. 30 compared to $32.36 a year earlier, a 31.7 percent increase, the company said.