SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001193125-13-080291
Filing Date
2013-02-27
Accepted
2013-02-27 17:06:04
Documents
11
Period of Report
2012-12-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-K d492933d10k.htm 10-K 569358
2 EX-10.B d492933dex10b.htm EX-10.B 6079
3 EX-31.A d492933dex31a.htm EX-31.A 9869
4 EX-31.B d492933dex31b.htm EX-31.B 9876
5 EX-32.A d492933dex32a.htm EX-32.A 4350
  Complete submission text file 0001193125-13-080291.txt   3652440

Data Files

Seq Description Document Type Size
6 XBRL INSTANCE DOCUMENT npgp-20121231.xml EX-101.INS 432954
7 XBRL TAXONOMY EXTENSION SCHEMA npgp-20121231.xsd EX-101.SCH 32281
8 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE npgp-20121231_cal.xml EX-101.CAL 62516
9 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE npgp-20121231_def.xml EX-101.DEF 95085
10 XBRL TAXONOMY EXTENSION LABEL LINKBASE npgp-20121231_lab.xml EX-101.LAB 309721
11 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE npgp-20121231_pre.xml EX-101.PRE 254846
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-K | Act: 34 | File No.: 001-07414 | Film No.: 13647691
SIC: 4922 Natural Gas Transmission