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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001193125-12-184179
Filing Date
2012-04-26
Accepted
2012-04-26 09:16:17
Documents
9
Period of Report
2012-03-31

Document Format Files

Seq Description Document Type Size
1 10-Q d340238d10q.htm 10-Q 194549
2 EX-31.(A) d340238dex31a.htm EX-31.(A) 9683
3 EX-31.(B) d340238dex31b.htm EX-31.(B) 9570
4 EX-32.(A) d340238dex32a.htm EX-32.(A) 4540
  Complete submission text file 0001193125-12-184179.txt   1242282

Data Files

Seq Description Document Type Size
5 XBRL INSTANCE DOCUMENT npgp-20120331.xml EX-101.INS 77146
6 XBRL TAXONOMY EXTENSION SCHEMA npgp-20120331.xsd EX-101.SCH 10764
7 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE npgp-20120331_cal.xml EX-101.CAL 49436
8 XBRL TAXONOMY EXTENSION LABEL LINKBASE npgp-20120331_lab.xml EX-101.LAB 163258
9 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE npgp-20120331_pre.xml EX-101.PRE 95003
Mailing Address 295 CHIPETA WAY SALT LAKE CITY UT 84108
Business Address 295 CHIPETA WAY SALT LAKE CITY UT 84108 801-583-8800
NORTHWEST PIPELINE GP (Filer) CIK: 0000110019 (see all company filings)

IRS No.: 261157701 | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-07414 | Film No.: 12781629
SIC: 4922 Natural Gas Transmission