TESORO NATUAL GAS CO
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Other (1)
POS AM
Wednesday, 12/15/1999
Post-effective amendment to a registration statement that is not immediately effective upon filing
Prospectus (8)
424B3
Monday, 8/10/1998
Prospectus filed pursuant to Rule 424(b)(3)
S-4
Friday, 7/24/1998
Registration of securities issued in business combination transactions
424B5
Monday, 6/29/1998
Prospectus filed pursuant to Rule 424(b)(5)
424B5
Monday, 6/29/1998
Prospectus filed pursuant to Rule 424(b)(5)
424B5
Tuesday, 6/9/1998
Prospectus filed pursuant to Rule 424(b)(5)
424B5
Tuesday, 6/9/1998
Prospectus filed pursuant to Rule 424(b)(5)
S-3/A
Thursday, 5/14/1998
Registration statement for specified transactions by certain issuers
S-3/A
Wednesday, 5/13/1998
Registration statement for specified transactions by certain issuers