| Data | Ora | Fonte | Titolo | Simbolo | Compagnia |
| 07/12/2009 | 12:00 | PR Newswire (US) | National Beef Commences Initial Public Offering of Class A Common Stock | NYSE:NBP | National Beef |
| 18/05/2006 | 01:06 | PR Newswire (US) | ONEOK Partners, L.P. Is New Name for Northern Border Partners; Partnership Also Announces Governance Changes | NYSE:NBP | National Beef |
| 15/05/2006 | 23:05 | PR Newswire (US) | Kansas Gas Service Seeks Rate Change | NYSE:NBP | National Beef |
| 11/05/2006 | 17:03 | PR Newswire (US) | ONEOK to Hold Its 2006 Annual Meeting of Shareholders | NYSE:NBP | National Beef |
| 03/05/2006 | 14:30 | PR Newswire (US) | Williams and ONEOK Affiliate to Form Joint Venture for New NGL Pipeline | NYSE:NBP | National Beef |
| 03/05/2006 | 13:00 | PR Newswire (US) | ONEOK Affiliate Announces Joint Venture With Williams to Build Rocky Mountain Natural Gas Liquids Pipeline | NYSE:NBP | National Beef |
| 02/05/2006 | 23:42 | PR Newswire (US) | ONEOK Announces Higher First-Quarter 2006 Earnings | NYSE:NBP | National Beef |
| 02/05/2006 | 22:32 | Business Wire | Northern Border Partners, L.P. Reports First Quarter 2006 Results and Reiterates 2006 Guidance | NYSE:NBP | National Beef |
| 02/05/2006 | 16:00 | PR Newswire (US) | ONEOK's Texas Gas Service Unit Receives Approval to Increase Rates | NYSE:NBP | National Beef |
| 01/05/2006 | 23:05 | PR Newswire (US) | ONEOK Selected By FirstEnergy to Provide Natural Gas Supply and Management Services | NYSE:NBP | National Beef |
| 01/05/2006 | 20:00 | Business Wire | Northern Border Partners, L.P. Completes Purchase of Interests in Guardian Pipeline, L.L.C. | NYSE:NBP | National Beef |
| 28/04/2006 | 22:54 | PR Newswire (US) | WPS Resources Completes Sale of Its Guardian Pipeline Interest | NYSE:NBP | National Beef |
| 24/04/2006 | 23:05 | PR Newswire (US) | ONEOK and Northern Border Partners to Present at AGA Financial Forum | NYSE:NBP | National Beef |
| 20/04/2006 | 23:14 | PR Newswire (US) | ONEOK Increases Quarterly Dividend By 7 Percent | NYSE:NBP | National Beef |
| 18/04/2006 | 22:49 | Business Wire | Northern Border Partners, L.P. Announces a 10 Percent Increase in Its First Quarter 2006 Cash Distribution | NYSE:NBP | National Beef |
| 13/04/2006 | 23:05 | PR Newswire (US) | ONEOK and Northern Border Partners First-Quarter 2006 Earnings Conference Call and Webcast Scheduled | NYSE:NBP | National Beef |
| 07/04/2006 | 00:30 | PR Newswire (US) | ONEOK and Northern Border Partners Complete Transactions, Announce Management Changes | NYSE:NBP | National Beef |
| 31/03/2006 | 00:34 | PR Newswire (US) | WPS Resources Corporation Sells Interest in Guardian Pipeline | NYSE:NBP | National Beef |
| 30/03/2006 | 22:20 | Business Wire | Northern Border Partners, L.P. To Purchase Remaining Interests in Guardian Pipeline, L.L.C. | NYSE:NBP | National Beef |
| 24/03/2006 | 22:15 | Business Wire | Northern Border Partners, L.P. Proceeds with Pipeline Extension | NYSE:NBP | National Beef |
| 15/03/2006 | 22:05 | PR Newswire (US) | ONEOK to Present at Howard Weil Inc.'s 34th Annual Energy Conference | NYSE:NBP | National Beef |
| 08/03/2006 | 17:19 | PR Newswire (US) | ONEOK Revises 2005 Results and 2006 Guidance | NYSE:NBP | National Beef |
| 07/03/2006 | 21:21 | Business Wire | Northern Border Partners, L.P. to Speak at Conference | NYSE:NBP | National Beef |
| 28/02/2006 | 15:00 | PR Newswire (US) | ONEOK Named to FORTUNE Magazine 'Most Admired List' | NYSE:NBP | National Beef |
| 22/02/2006 | 22:05 | PR Newswire (US) | ONEOK Announces Higher 2005 Earnings | NYSE:NBP | National Beef |
| 16/02/2006 | 15:00 | PR Newswire (US) | ONEOK Announces Settlement of Equity Units With Common Stock | NYSE:NBP | National Beef |
| 15/02/2006 | 13:15 | Business Wire | Northern Border Partners, L.P. Reschedules Fourth Quarter and Full Year 2005 Earnings Conference Call | NYSE:NBP | National Beef |
| 15/02/2006 | 13:15 | PR Newswire (US) | ONEOK and Northern Border Partners to Conduct Conference Call and Webcast | NYSE:NBP | National Beef |
| 15/02/2006 | 13:05 | Business Wire | Northern Border Partners, L.P. Reports Fourth Quarter and Year End 2005 Results | NYSE:NBP | National Beef |
| 15/02/2006 | 12:57 | PR Newswire (US) | ONEOK and Northern Border Partners Announce Transactions, Increase 2006 Earnings Guidance | NYSE:NBP | National Beef |