Annual Report — Form 10-K — Sect. 13 / 15(d) – SEA’34
Filing Table of Contents
Document/Exhibit Description Pages Size
1: 10-K Annual Report HTML 2.00M
2: EX-10.CC Material Contract HTML 81K
3: EX-10.II Material Contract HTML 52K
4: EX-10.L Material Contract HTML 60K
5: EX-10.M Material Contract HTML 61K
6: EX-10.Q Material Contract HTML 68K
7: EX-10.SS Material Contract HTML 39K
8: EX-10.Z Material Contract HTML 81K
9: EX-21 Subsidiaries List HTML 40K
10: EX-23.A Consent of Experts or Counsel HTML 32K
11: EX-23.B Consent of Experts or Counsel HTML 31K
12: EX-31.A Certification -- §302 - SOA'02 HTML 35K
13: EX-31.B Certification -- §302 - SOA'02 HTML 35K
14: EX-31.C Certification -- §302 - SOA'02 HTML 35K
15: EX-31.D Certification -- §302 - SOA'02 HTML 35K
16: EX-32.A Certification -- §906 - SOA'02 HTML 33K
17: EX-32.B Certification -- §906 - SOA'02 HTML 33K
24: R1 Document and Entity Information HTML 70K
25: R2 Consolidated Statements of Comprehensive Income HTML 149K
26: R3 Consolidated Statements of Comprehensive Income HTML 37K
(Parentheticals)
27: R4 Consolidated Balance Sheets HTML 217K
28: R5 Consolidated Balance Sheets (Parentheticals) HTML 41K
29: R6 Consolidated Statement of Shareholders' Equity HTML 79K
30: R7 Consolidated Statement of Cash Flows HTML 160K
31: R8 Organization and Principles of Consolidation HTML 50K
32: R9 Significant Accounting Policies HTML 306K
33: R10 Earnings Per Share HTML 76K
34: R11 Segment Information HTML 138K
35: R12 Common Stock Common Stock HTML 50K
36: R13 Revenue Revenue HTML 87K
37: R14 Stock-Based Compensation HTML 142K
38: R15 Debt HTML 130K
39: R16 Pension and Other Postretirement Benefits Costs HTML 407K
40: R17 Income Tax HTML 175K
41: R18 Property, Plant and Equipment HTML 72K
42: R19 Gas Reserves HTML 51K
43: R20 Investments HTML 57K
44: R21 Business Combinations Business Combinations HTML 38K
45: R22 Derivative Instruments HTML 93K
46: R23 Commitments and Contigencies HTML 73K
47: R24 Environmental Matters HTML 109K
48: R25 Discontinued Operations HTML 164K
49: R26 Quarterly Financial Information HTML 165K
50: R27 Condensed Financials Standalone Holdco Condensed HTML 101K
Financials Standalone Holdco (Notes)
51: R28 Valuation Allowances and Reserves HTML 113K
52: R29 Significant Accounting Policies (Policies) HTML 225K
53: R30 Significant Accounting Policies (Tables) HTML 99K
54: R31 Earnings Per Share (Tables) HTML 75K
55: R32 Segment Information (Tables) HTML 131K
56: R33 Common Stock (Tables) HTML 42K
57: R34 Revenue (Tables) HTML 73K
58: R35 Stock-Based Compensation (Tables) HTML 140K
59: R36 Debt (Tables) HTML 113K
60: R37 Pension and Other Postretirement Benefits Costs HTML 398K
(Tables)
61: R38 Income Tax (Tables) HTML 164K
62: R39 Property, Plant and Equipment (Tables) HTML 69K
63: R40 Gas Reserves (Tables) HTML 46K
64: R41 Investments (Tables) HTML 49K
65: R42 Derivative Instruments (Tables) HTML 80K
66: R43 Commitments and Contingencies (Tables) HTML 66K
67: R44 Environmental Matters (Tables) HTML 80K
68: R45 Discontinued Operations (Tables) HTML 169K
69: R46 Quarterly Financial Information (Tables) HTML 167K
70: R47 Condensed Financials Standalone Holdco NW Holdings HTML 101K
Financial Statements (Tables)
71: R48 Valuation Allowances and Reserves (Tables) HTML 115K
72: R49 Significant Accounting Policies - Regulatory Asset HTML 58K
Disclosure (Details)
73: R50 Significant Accounting Policies - Regulatory HTML 53K
Liability Disclosure (Details)
74: R51 Narrative (Details) HTML 111K
75: R52 Significant Accounting Policies - Retirement HTML 37K
Benefits ASU 2017-07 (Details)
76: R53 Significant Accounting Policies - Revenue from HTML 60K
Contract with Customer (Details)
77: R54 Significant Accounting Policies - Leases ASU HTML 37K
2016-02 (Details)
78: R55 Earnings Per Share (Details) HTML 107K
79: R56 Segment Information - Narrative (Details) HTML 71K
80: R57 Segment Information - Schedule of Summarized HTML 126K
Financial Information by Segment (Details)
81: R58 Segment Information - Additional Segment HTML 54K
Information (Details)
82: R59 Common Stock - Narrative (Details) HTML 88K
83: R60 Common Stock - Schedule of Summary of Changes in HTML 51K
Common Stock (Details)
84: R61 Revenue - Disaggregation of Revenue (Details) HTML 158K
85: R62 Revenue - Revenue, Remaining Performance HTML 50K
Obligation, Expected Timing of Satisfaction
(Details)
86: R63 Stock-Based Compensation (Details) HTML 216K
87: R64 Debt (Details) HTML 208K
88: R65 Pension and Other Postretirement Benefits Costs - HTML 84K
Changes in Benefit Obligations and Fair Value of
Plan Assets (Details)
89: R66 Pension and Other Postretirement Benefits Costs - HTML 118K
Narrative (Details)
90: R67 Pension and Other Postretirement Benefits Costs - HTML 65K
Schedule of Amounts Realized in Other
Comprehensive Loss (Income) (Details)
91: R68 Pension and Other Postretirement Benefits Costs - HTML 52K
Schedule of Amount Recognized in AOCL (Details)
92: R69 Pension and Other Postretirement Benefits Costs - HTML 57K
Schedule of AOCL and Changes in AOCL,
Non-Qualified Employee Plans (Details)
93: R70 Pension and Other Postretirement Benefits Costs - HTML 54K
Schedule of Pension Plan Target Allocations
(Details)
94: R71 Pension and Other Postretirement Benefits Costs - HTML 67K
Schedule of Components of Net Periodic Benefit
Cost for NW Natural (Details)
95: R72 Pension and Other Postretirement Benefits Costs - HTML 59K
Schedule of Assumptions Used (Details)
96: R73 Pension and Other Postretirement Benefits Costs - HTML 43K
Schedule of Effect of One Percentage Point Change
in Assumed Health Care Cost (Details)
97: R74 Pension and Other Postretirement Benefits Costs - HTML 65K
Schedule of Future Employer Contributions and
Benefit Payments (Details)
98: R75 Pension and Other Postretirement Benefits Costs - HTML 97K
Schedule of Fair Value of Plan Assets (Details)
99: R76 Income Tax (Details) HTML 168K
100: R77 Property, Plant and Equipment (Details) HTML 78K
101: R78 Gas Reserves (Details) HTML 55K
102: R79 Investments (Details) HTML 56K
103: R80 Business Combinations (Details) HTML 49K
104: R81 Derivative Instruments - Narrative (Details) HTML 64K
105: R82 Derivative Instruments - Schedule of Notional HTML 43K
Amounts (Details)
106: R83 Derivative Instruments - Schedule of Unrealized HTML 52K
and Realized Gain/Loss (Details)
107: R84 Schedule of Credit Rating Downgrade Scenarios HTML 46K
(Details)
108: R85 Commitments and Contingencies - Narrative HTML 73K
(Details)
109: R86 Commitments and Contingencies - Schedule of Future HTML 53K
Minimum Payments Due, Fiscal Year Maturity
(Details)
110: R87 Commitments and Contingencies - Schedule of Gas HTML 65K
Purchase and Pipeline Capacity Purchase and
Release Commitments (Details)
111: R88 Environmental Matters (Details) HTML 127K
112: R89 Discontinued Operations (Details) HTML 243K
113: R90 Quarterly Financial Information (Details) HTML 102K
114: R91 Condensed Financials Standalone Holdco Condensed HTML 231K
Financials Standalone Holdco (Details)
115: R92 Valuation Allowances and Reserves (Details) HTML 46K
117: XML IDEA XML File -- Filing Summary XML 195K
116: EXCEL IDEA Workbook of Financial Reports XLSX 181K
18: EX-101.INS XBRL Instance -- nwn-20181231 XML 7.07M
20: EX-101.CAL XBRL Calculations -- nwn-20181231_cal XML 360K
21: EX-101.DEF XBRL Definitions -- nwn-20181231_def XML 1.87M
22: EX-101.LAB XBRL Labels -- nwn-20181231_lab XML 2.99M
23: EX-101.PRE XBRL Presentations -- nwn-20181231_pre XML 2.04M
19: EX-101.SCH XBRL Schema -- nwn-20181231 XSD 312K
118: ZIP XBRL Zipped Folder -- 0001733998-19-000004-xbrl Zip 561K
‘EX-23.B’ — Consent of Experts or Counsel
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