Baltimore Gas & Electric Company 6.97 referred Stock (OP: )

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
May 12, 2011		106.00	106.00	106.00	0	+0.00(+0.00%)
May 06, 2011		106.00	106.00	106.00	0	-4.00(-3.64%)
May 02, 2011		110.00	110.00	110.00	0	-9.00(-7.56%)
Apr 29, 2011	125.00	125.00	108.00	119.00	752	+14.00(+13.33%)
Apr 28, 2011	109.90	109.90	103.00	105.00	1,000	+5.00(+5.00%)