Cover Page
Cover Page - shares | 9 Months Ended | |
Sep. 30, 2023 | Oct. 31, 2023 | |
Cover [Abstract] | ||
Document Type | 10-Q | |
Document Quarterly Report | true | |
Current Fiscal Year End Date | --12-31 | |
Document Period End Date | Sep. 30, 2023 | |
Document Transition Report | false | |
Entity File Number | 001-31303 | |
Entity Registrant Name | Black Hills Corporation | |
Entity Incorporation, State or Country Code | SD | |
Entity Tax Identification Number | 46-0458824 | |
Entity Address, Address Line One | 7001 Mount Rushmore Road | |
Entity Address, City or Town | Rapid City | |
Entity Address, State or Province | SD | |
Entity Address, Postal Zip Code | 57702 | |
City Area Code | 605 | |
Local Phone Number | 721-1700 | |
Title of 12(b) Security | Common stock of $1.00 par value | |
Trading Symbol | BKH | |
Security Exchange Name | NYSE | |
Entity Current Reporting Status | Yes | |
Entity Interactive Data Current | Yes | |
Entity Filer Category | Large Accelerated Filer | |
Entity Small Business | false | |
Entity Emerging Growth Company | false | |
Entity Shell Company | false | |
Entity Common Stock, Shares Outstanding | 67,991,643 | |
Entity Central Index Key | 0001130464 | |
Amendment Flag | false | |
Document Fiscal Year Focus | 2023 | |
Document Fiscal Period Focus | Q3 |
Consolidated Statements of Inco
Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Revenue: | ||||
Revenue | $ 407,126 | $ 462,612 | $ 1,739,568 | $ 1,760,377 |
Operating expenses: | ||||
Fuel, purchased power and cost of natural gas sold | 102,241 | 168,535 | 749,753 | 793,632 |
Operations and maintenance | 125,767 | 134,449 | 412,522 | 403,549 |
Depreciation, depletion and amortization | 64,878 | 64,019 | 191,235 | 188,610 |
Taxes - property and production | 16,469 | 16,130 | 49,888 | 49,365 |
Total operating expenses | 309,355 | 383,133 | 1,403,398 | 1,435,156 |
Operating income | 97,771 | 79,479 | 336,170 | 325,221 |
Other income (expense): | ||||
Interest expense incurred net of amounts capitalized | (44,477) | (40,580) | (131,809) | (118,454) |
Interest income | 3,479 | 561 | 5,786 | 1,126 |
Other income (expense), net | (647) | 464 | (1,513) | 2,731 |
Total other income (expense) | (41,645) | (39,555) | (127,536) | (114,597) |
Income before income taxes | 56,126 | 39,924 | 208,634 | 210,624 |
Income tax (expense) | (7,366) | (2,090) | (15,950) | (15,920) |
Net income | 48,760 | 37,834 | 192,684 | 194,704 |
Net income attributable to non-controlling interest | (3,377) | (2,861) | (10,164) | (8,790) |
Net income available for common stock | $ 45,383 | $ 34,973 | $ 182,520 | $ 185,914 |
Earnings per share of common stock: | ||||
Earnings per share, Basic (usd per share) | $ 0.67 | $ 0.54 | $ 2.74 | $ 2.87 |
Earnings per share, Diluted (usd per share) | $ 0.67 | $ 0.54 | $ 2.74 | $ 2.86 |
Weighted average common shares outstanding: | ||||
Basic (in shares) | 67,315 | 64,876 | 66,652 | 64,722 |
Diluted (in shares) | 67,389 | 65,061 | 66,725 | 64,910 |
Consolidated Statements of Comp
Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Net income | $ 48,760 | $ 37,834 | $ 192,684 | $ 194,704 |
Other comprehensive income (loss), net of tax: | ||||
Reclassification adjustments of benefit plan liability - prior service cost (net of tax of $--, $8, $-- and $22, respectively) | 0 | (16) | 0 | (48) |
Reclassification adjustments of benefit plan liability - net loss (net of tax of $(19), $(66), $(62) and $(179), respectively) | 24 | 122 | 67 | 384 |
Net unrealized gains (losses) on commodity derivatives (net of tax of $58, $(559), $291 and $(165), respectively) | (195) | 1,776 | (937) | 509 |
Other comprehensive income (loss), net of tax | 405 | 2,427 | 2,660 | (305) |
Comprehensive income | 49,165 | 40,261 | 195,344 | 194,399 |
Less: comprehensive income attributable to non-controlling interest | (3,377) | (2,861) | (10,164) | (8,790) |
Comprehensive income available for common stock | 45,788 | 37,400 | 185,180 | 185,609 |
Interest rate swaps | ||||
Other comprehensive income (loss), net of tax: | ||||
Other comprehensive income (loss), cash flow hedge, gain (loss), reclassification, after tax | 550 | 578 | 1,649 | 1,589 |
Commodity derivatives | ||||
Other comprehensive income (loss), net of tax: | ||||
Other comprehensive income (loss), cash flow hedge, gain (loss), reclassification, after tax | $ 26 | $ (33) | $ 1,881 | $ (2,739) |
Consolidated Statements of Co_2
Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
(Tax) benefit on reclassification adjustment of benefit plan liability - net loss | $ (19) | $ (66) | $ (62) | $ (179) |
(Tax) benefit on reclassification adjustment of benefit plan liability - prior service cost | 0 | 8 | 0 | 22 |
Interest Rate Swap | ||||
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification,Tax (Benefit) | (162) | (134) | (489) | (549) |
Commodity Contract | ||||
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification,Tax (Benefit) | (8) | 10 | (592) | 881 |
(Tax) benefit on net unrealized gains (losses) on commodity derivatives | $ 58 | $ (559) | $ 291 | $ (165) |
Consolidated Balance Sheets
Consolidated Balance Sheets - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Current assets: | ||
Cash and cash equivalents | $ 594,289 | $ 21,430 |
Restricted cash and equivalents | 6,213 | 5,555 |
Accounts receivable, net | 228,830 | 508,192 |
Materials, supplies and fuel | 168,079 | 207,421 |
Derivative assets, current | 126 | 582 |
Income tax receivable, net | 17,749 | 17,637 |
Regulatory assets, current | 191,746 | 260,312 |
Other current assets | 33,242 | 50,579 |
Total current assets | 1,240,274 | 1,071,708 |
Property, plant and equipment | 8,767,954 | 8,374,790 |
Less accumulated depreciation and depletion | (1,755,606) | (1,576,842) |
Total property, plant and equipment, net | 7,012,348 | 6,797,948 |
Other assets: | ||
Goodwill | 1,299,454 | 1,299,454 |
Intangible assets, net | 8,708 | 9,589 |
Regulatory assets, non-current | 313,113 | 392,669 |
Other assets, non-current | 59,031 | 46,862 |
Total other assets, non-current | 1,680,306 | 1,748,574 |
TOTAL ASSETS | 9,932,928 | 9,618,230 |
Current liabilities: | ||
Accounts payable | 124,033 | 310,020 |
Accrued liabilities | 257,458 | 243,457 |
Derivative liabilities, current | 2,193 | 6,600 |
Regulatory liabilities, current | 93,988 | 46,013 |
Notes payable | 0 | 535,600 |
Current maturities of long-term debt | 1,125,000 | 525,000 |
Total current liabilities | 1,602,672 | 1,666,690 |
Long-term debt, net of current maturities | 3,799,510 | 3,607,340 |
Deferred credits and other liabilities: | ||
Deferred income tax liabilities, net | 530,985 | 508,941 |
Regulatory liabilities, non-current | 468,969 | 472,560 |
Benefit plan liabilities | 119,046 | 116,742 |
Other deferred credits and other liabilities | 152,174 | 156,062 |
Total deferred credits and other liabilities | 1,271,174 | 1,254,305 |
Commitments, contingencies and guarantees (Note 3) | ||
Equity: | ||
Common stock $1 par value; 100,000,000 shares authorized; issued 68,046,262 and 66,140,396 shares, respectively | 68,046 | 66,140 |
Additional paid-in capital | 1,994,439 | 1,882,653 |
Retained earnings | 1,121,196 | 1,064,122 |
Treasury stock, at cost - 54,428 and 36,726 shares, respectively | (3,457) | (2,435) |
Accumulated other comprehensive income (loss) | (12,907) | (15,567) |
Total stockholders’ equity | 3,167,317 | 2,994,913 |
Non-controlling interest | 92,255 | 94,982 |
Total equity | 3,259,572 | 3,089,895 |
TOTAL LIABILITIES AND TOTAL EQUITY | $ 9,932,928 | $ 9,618,230 |
Consolidated Balance Sheets (Pa
Consolidated Balance Sheets (Parenthetical) - $ / shares | Sep. 30, 2023 | Dec. 31, 2022 |
Statement of Financial Position [Abstract] | ||
Common stock, par value (usd per share) | $ 1 | $ 1 |
Common stock, shares authorized | 100,000,000 | 100,000,000 |
Common stock, shares, issued | 68,046,262 | 66,140,396 |
Treasury stock, shares | 54,428 | 36,726 |
Consolidated Statements of Cash
Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 9 Months Ended | |
Sep. 30, 2023 | Sep. 30, 2022 | |
Operating activities: | ||
Net income | $ 192,684 | $ 194,704 |
Adjustments to reconcile net income to net cash provided by operating activities: | ||
Depreciation, depletion and amortization | 191,235 | 188,610 |
Deferred financing cost amortization | 6,928 | 7,430 |
Stock compensation | 4,563 | 6,779 |
Deferred income taxes | 16,114 | 16,062 |
Employee benefit plans | 7,929 | 2,677 |
Other adjustments, net | (6,099) | (10,243) |
Change in certain operating assets and liabilities: | ||
Materials, supplies and fuel | 43,546 | (88,405) |
Accounts receivable and other current assets | 302,764 | 64,280 |
Accounts payable and other current liabilities | (186,500) | 5,963 |
Regulatory assets | 199,093 | 118,330 |
Other operating activities, net | (16,205) | (11,900) |
Net cash provided by operating activities | 756,052 | 494,287 |
Investing activities: | ||
Property, plant and equipment additions | (421,770) | (466,302) |
Other investing activities | 17,985 | (19) |
Net cash (used in) investing activities | (403,785) | (466,321) |
Financing activities: | ||
Dividends paid on common stock | (125,446) | (115,850) |
Common stock issued | 107,380 | 20,027 |
Net borrowings (payments) of Revolving Credit Facility and CP Program | (535,600) | 81,170 |
Long-term debt - issuance | 800,000 | 0 |
Distributions to non-controlling interests | (12,891) | (11,678) |
Other financing activities | (12,193) | 1,647 |
Net cash provided by (used in) financing activities | 221,250 | (24,684) |
Net change in cash, restricted cash and cash equivalents | 573,517 | 3,282 |
Cash, restricted cash and cash equivalents beginning of period | 26,985 | 13,810 |
Cash, restricted cash and cash equivalents end of period | 600,502 | 17,092 |
Supplemental cash flow information: | ||
Interest (net of amounts capitalized) | (108,813) | (98,227) |
Income taxes | 51 | 746 |
Accrued property, plant and equipment purchases at September 30, | $ 52,984 | $ 42,687 |
Consolidated Statements of Equi
Consolidated Statements of Equity - USD ($) $ in Thousands | Total | Common Stock | Treasury Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Noncontrolling Interest |
Beginning balance (in shares) at Dec. 31, 2021 | 64,793,095 | 54,078 | |||||
Beginning balance at Dec. 31, 2021 | $ 2,887,123 | $ 64,793 | $ (3,509) | $ 1,783,436 | $ 962,458 | $ (20,084) | $ 100,029 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income | 121,024 | 117,526 | 3,498 | ||||
Other comprehensive income, net of tax | 6 | 6 | |||||
Dividends on common stock | (38,533) | (38,533) | |||||
Share-based compensation (in shares) | 425 | (34,393) | |||||
Share-based compensation | 2,031 | $ 2,222 | (191) | ||||
Issuance of common stock (in shares) | 55,707 | ||||||
Issuance of common stock | 3,832 | $ 56 | 3,776 | ||||
Issuance costs | (41) | (41) | |||||
Distributions to non-controlling interest | (4,420) | (4,420) | |||||
Ending balance (in shares) at Mar. 31, 2022 | 64,849,227 | 19,685 | |||||
Ending balance at Mar. 31, 2022 | 2,971,022 | $ 64,849 | $ (1,287) | 1,786,980 | 1,041,451 | (20,078) | 99,107 |
Beginning balance (in shares) at Dec. 31, 2021 | 64,793,095 | 54,078 | |||||
Beginning balance at Dec. 31, 2021 | 2,887,123 | $ 64,793 | $ (3,509) | 1,783,436 | 962,458 | (20,084) | 100,029 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income | 194,704 | ||||||
Other comprehensive income, net of tax | (305) | ||||||
Ending balance (in shares) at Sep. 30, 2022 | 65,105,205 | 26,208 | |||||
Ending balance at Sep. 30, 2022 | 2,983,757 | $ 65,105 | $ (1,715) | 1,811,093 | 1,032,522 | (20,389) | 97,141 |
Beginning balance (in shares) at Mar. 31, 2022 | 64,849,227 | 19,685 | |||||
Beginning balance at Mar. 31, 2022 | 2,971,022 | $ 64,849 | $ (1,287) | 1,786,980 | 1,041,451 | (20,078) | 99,107 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income | 35,846 | 33,415 | 2,431 | ||||
Other comprehensive income, net of tax | (2,738) | (2,738) | |||||
Dividends on common stock | (38,603) | (38,603) | |||||
Share-based compensation (in shares) | 39,066 | 4,006 | |||||
Share-based compensation | 5,154 | $ 39 | $ (255) | 5,370 | |||
Issuance of common stock (in shares) | 216,885 | ||||||
Issuance of common stock | 16,570 | $ 217 | 16,353 | ||||
Issuance costs | (266) | (266) | |||||
Distributions to non-controlling interest | (4,184) | (4,184) | |||||
Ending balance (in shares) at Jun. 30, 2022 | 65,105,178 | 23,691 | |||||
Ending balance at Jun. 30, 2022 | 2,982,801 | $ 65,105 | $ (1,542) | 1,808,437 | 1,036,263 | (22,816) | 97,354 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income | 37,834 | 34,973 | 2,861 | ||||
Other comprehensive income, net of tax | 2,427 | 2,427 | |||||
Dividends on common stock | (38,714) | (38,714) | |||||
Share-based compensation (in shares) | 27 | 2,517 | |||||
Share-based compensation | 2,551 | $ (173) | 2,724 | ||||
Issuance costs | (68) | (68) | |||||
Distributions to non-controlling interest | (3,074) | (3,074) | |||||
Ending balance (in shares) at Sep. 30, 2022 | 65,105,205 | 26,208 | |||||
Ending balance at Sep. 30, 2022 | 2,983,757 | $ 65,105 | $ (1,715) | 1,811,093 | 1,032,522 | (20,389) | 97,141 |
Beginning balance (in shares) at Dec. 31, 2022 | 66,140,396 | 36,726 | |||||
Beginning balance at Dec. 31, 2022 | 3,089,895 | $ 66,140 | $ (2,435) | 1,882,653 | 1,064,122 | (15,567) | 94,982 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income | 117,380 | 114,084 | 3,296 | ||||
Other comprehensive income, net of tax | 1,220 | 1,220 | |||||
Dividends on common stock | (41,362) | (41,362) | |||||
Share-based compensation (in shares) | 84,735 | 4,388 | |||||
Share-based compensation | 1,709 | $ 85 | $ (262) | 1,886 | |||
Issuance of common stock (in shares) | 445,578 | ||||||
Issuance of common stock | 27,719 | $ 446 | 27,273 | ||||
Issuance costs | (336) | (336) | |||||
Distributions to non-controlling interest | (4,494) | (4,494) | |||||
Ending balance (in shares) at Mar. 31, 2023 | 66,670,709 | 41,114 | |||||
Ending balance at Mar. 31, 2023 | 3,191,731 | $ 66,671 | $ (2,697) | 1,911,476 | 1,136,844 | (14,347) | 93,784 |
Beginning balance (in shares) at Dec. 31, 2022 | 66,140,396 | 36,726 | |||||
Beginning balance at Dec. 31, 2022 | 3,089,895 | $ 66,140 | $ (2,435) | 1,882,653 | 1,064,122 | (15,567) | 94,982 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income | 192,684 | ||||||
Other comprehensive income, net of tax | 2,660 | ||||||
Ending balance (in shares) at Sep. 30, 2023 | 68,046,262 | 54,428 | |||||
Ending balance at Sep. 30, 2023 | 3,259,572 | $ 68,046 | $ (3,457) | 1,994,439 | 1,121,196 | (12,907) | 92,255 |
Beginning balance (in shares) at Mar. 31, 2023 | 66,670,709 | 41,114 | |||||
Beginning balance at Mar. 31, 2023 | 3,191,731 | $ 66,671 | $ (2,697) | 1,911,476 | 1,136,844 | (14,347) | 93,784 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income | 26,544 | 23,053 | 3,491 | ||||
Other comprehensive income, net of tax | 1,035 | 1,035 | |||||
Dividends on common stock | (41,752) | (41,752) | |||||
Share-based compensation (in shares) | 8,492 | 7,509 | |||||
Share-based compensation | 2,426 | $ 8 | $ (470) | 2,888 | |||
Issuance of common stock (in shares) | 436,202 | ||||||
Issuance of common stock | 27,710 | $ 436 | 27,274 | ||||
Issuance costs | (404) | (404) | |||||
Distributions to non-controlling interest | (4,523) | (4,523) | |||||
Ending balance (in shares) at Jun. 30, 2023 | 67,115,403 | 48,623 | |||||
Ending balance at Jun. 30, 2023 | 3,202,767 | $ 67,115 | $ (3,167) | 1,941,234 | 1,118,145 | (13,312) | 92,752 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income | 48,760 | 45,383 | 3,377 | ||||
Other comprehensive income, net of tax | 405 | 405 | |||||
Dividends on common stock | (42,332) | (42,332) | |||||
Share-based compensation (in shares) | 15 | 5,805 | |||||
Share-based compensation | 1,155 | $ (290) | 1,445 | ||||
Issuance of common stock (in shares) | 930,844 | ||||||
Issuance of common stock | 53,364 | $ 931 | 52,433 | ||||
Issuance costs | (673) | (673) | |||||
Distributions to non-controlling interest | (3,874) | (3,874) | |||||
Ending balance (in shares) at Sep. 30, 2023 | 68,046,262 | 54,428 | |||||
Ending balance at Sep. 30, 2023 | $ 3,259,572 | $ 68,046 | $ (3,457) | $ 1,994,439 | $ 1,121,196 | $ (12,907) | $ 92,255 |
Consolidated Statements of Eq_2
Consolidated Statements of Equity (Parenthetical) - $ / shares | 3 Months Ended | |||||
Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | |
Statement of Stockholders' Equity [Abstract] | ||||||
Dividends on common stock (usd per share) | $ 0.625 | $ 0.625 | $ 0.625 | $ 0.595 | $ 0.595 | $ 0.595 |
Pay vs Performance Disclosure
Pay vs Performance Disclosure - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Pay vs Performance Disclosure | ||||
Net Income (Loss) | $ 45,383 | $ 34,973 | $ 182,520 | $ 185,914 |
Insider Trading Arrangements
Insider Trading Arrangements | 9 Months Ended |
Sep. 30, 2023 | |
Trading Arrangements, by Individual | |
Rule 10b5-1 Arrangement Adopted | false |
Non-Rule 10b5-1 Arrangement Adopted | false |
Rule 10b5-1 Arrangement Terminated | false |
Non-Rule 10b5-1 Arrangement Terminated | false |
Management's Statement
Management's Statement | 9 Months Ended |
Sep. 30, 2023 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Management's Statement | (1) Management’s Statement The unaudited Consolidated Financial Statements included herein have been prepared by Black Hills Corporation (together with our subsidiaries the “Company”, “us”, “we” or “our”), pursuant to the rules and regulations of the SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to such rules and regulations; however, we believe that the footnotes adequately disclose the information presented. These Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and the notes included in our 2022 Annual Report on Form 10-K. Use of Estimates and Basis of Presentation The information furnished in the accompanying Consolidated Financial Statements reflects certain estimates required and all adjustments, including accruals, which are, in the opinion of management, necessary for a fair presentation of the September 30, 2023, December 31, 2022 and September 30, 2022 financial information. Certain lines of business in which we operate are highly seasonal, and our interim results of operations are not necessarily indicative of the results of operations to be expected for an entire year. |
Regulatory Matters
Regulatory Matters | 9 Months Ended |
Sep. 30, 2023 | |
Regulated Operations [Abstract] | |
Regulatory Matters | (2) Regulatory Matters We had the following regulatory assets and liabilities (in thousands): As of As of September 30, 2023 December 31, 2022 Regulatory assets Winter Storm Uri $ 225,052 $ 347,980 Deferred energy and fuel cost adjustments 59,129 72,580 Deferred gas cost adjustments 8,048 12,147 Gas price derivatives 3,849 8,793 Deferred taxes on AFUDC 7,180 7,333 Employee benefit plans and related deferred taxes 87,423 89,259 Environmental 2,868 1,343 Loss on reacquired debt 17,865 19,213 Deferred taxes on flow through accounting 69,259 69,529 Decommissioning costs 2,407 3,472 Other regulatory assets 21,779 21,332 Total regulatory assets 504,859 652,981 Less current regulatory assets ( 191,746 ) ( 260,312 ) Regulatory assets, non-current $ 313,113 $ 392,669 Regulatory liabilities Deferred energy and gas costs $ 91,273 $ 41,722 Employee benefit plan costs and related deferred taxes 33,006 34,258 Cost of removal 179,208 175,614 Excess deferred income taxes 250,390 254,833 Other regulatory liabilities 9,080 12,146 Total regulatory liabilities 562,957 518,573 Less current regulatory liabilities ( 93,988 ) ( 46,013 ) Regulatory liabilities, non-current $ 468,969 $ 472,560 Regulatory Activity Except as discussed below, there have been no other significant changes to our Regulatory Matters from those previously disclosed in Note 2 of the Notes to the Consolidated Financial Statements in our 2022 Annual Report on Form 10-K. Colorado Gas RMNG Rate Review On July 12, 2023, the CPUC approved a settlement agreement for RMNG's rate review filed on October 7, 2022. The agreement is expected to generate $ 8.2 million in new annual revenue and establishes a weighted average cost of capital of 6.93 % with a capital structure that reflects an equity range of 50 % to 52 %, a debt range of 50 % to 48 % and a return on equity range of 9.5 % to 9.7 %. The settlement also shifts $ 8.3 million of SSIR revenues to base rates and terminates the SSIR. New rates were effective July 15, 2023. Colorado Gas Rate Review On May 9, 2023, Colorado Gas filed a rate review with the CPUC seeking recovery of significant infrastructure investments in its 10,000 -mile natural gas pipeline system. The rate review requests $ 27 million in new annual revenue with a capital structure of 51 % equity and 49 % debt and a return on equity of 10.49 %. The request seeks to finalize rates in the first quarter of 2024. Wyoming Gas On May 18, 2023, Wyoming Gas filed a rate review with the WPSC seeking recovery of significant infrastructure investments in its 6,400 -mile natural gas pipeline system. On October 13, 2023, Wyoming Gas filed a settlement agreement with the WPSC for a general rate increase. The agreement is expected to generate $ 13.9 million in new annual revenue with a capital structure of 51 % equity, 49 % debt and a return on equity of 9.85 %. Subject to WPSC approval, the agreement includes new rates effective January 1, 2024 and a four-year extension of the Wyoming Integrity Rider. Wyoming Electric On June 1, 2022, Wyoming Electric filed a rate review with the WPSC seeking recovery of significant infrastructure investments in its 1,330 -mile electric distribution and 59 -mile electric transmission systems. On January 26, 2023, the WPSC approved a settlement agreement with intervening parties for a general rate increase. The settlement is expected to generate $ 8.7 million in new annual revenue with a capital structure of 52 % equity, 48 % debt and a return on equity of 9.75 %. New rates were effective March 1, 2023. The agreement also includes approval of a new rider that will be filed annually to recover transmission investments and expenses. |
Commitment, Contingencies And G
Commitment, Contingencies And Guarantees | 9 Months Ended |
Sep. 30, 2023 | |
Commitments and Contingencies Disclosure [Abstract] | |
Commitments, Contingencies and Guarantees | (3) Commitments, Contingencies and Guarantees Except as described below, there have been no significant changes to commitments, contingencies and guarantees from those previously disclosed in Note 3 of our Notes to the Consolidated Financial Statements in our 2022 Annual Report on Form 10-K. GT Resources, LLC v. Black Hills Corporation, Case No. 2020CV30751 (U.S. District Court for the City and County of Denver, Colorado) On April 13, 2022, a jury awarded $ 41 million for claims made by GT Resources, LLC (“GTR”) against BHC and two of its subsidiaries (Black Hills Exploration and Production, Inc. and Black Hills Gas Resources, Inc.), which ceased oil and natural gas operations in 2018 as part of BHC’s decision to exit the exploration and production business. The claims involved a dispute over a 2.3 million-acre concession award in Costa Rica which was acquired by a BHC subsidiary in 2003. GTR retained rights to receive a royalty interest on any hydrocarbon production from the concession upon the occurrence of contingent events. GTR contended that BHC and its subsidiaries failed to adequately pursue the opportunity and failed to transfer the concession to GTR. We appealed this verdict to the Colorado Court of Appeals. On October 19, 2023, the Appellate Court reversed and remanded the case with directions limiting any retrial to the narrow issue of whether there was improper interference with the prospective conveyance of the concession. We continue to believe this lawsuit has no merit and will vigorously defend it. At this time, we do not believe any losses from this matter will have a material impact on our financial position, results of operations and cash flows. Gain Contingency - Wygen 1 Business Interruption Insurance Recovery In September 2021, Wygen I experienced an unplanned outage that continued until December 2021. For the year ended December 31, 2021, the outage resulted in lost revenue at our subsidiaries Black Hills Wyoming and WRDC. A claim for these losses was submitted under our business interruption insurance policy. During the third quarter of 2023, we recovered $ 5.0 million from our business interruption insurance which was recognized as Revenue in our Consolidated Statements of Income for the three and nine months ended September 30, 2023. |
Revenue
Revenue | 9 Months Ended |
Sep. 30, 2023 | |
Revenue from Contract with Customer [Abstract] | |
Revenue | evenue The following tables depict the disaggregation of revenue, including intercompany revenue, from contracts with customers by customer type and timing of revenue recognition for each of the reportable segments for the three and nine months ended September 30, 2023 and 2022. Sales tax and other similar taxes are excluded from revenues. Three Months Ended September 30, 2023 Electric Utilities Gas Utilities Inter-segment Revenues Total Customer types: (in thousands) Retail $ 191,029 $ 120,803 $ - $ 311,832 Transportation - 42,654 ( 114 ) 42,540 Wholesale 9,441 - - 9,441 Market - off-system sales 12,999 25 - 13,024 Transmission/Other 18,092 9,607 ( 4,374 ) 23,325 Revenue from contracts with customers $ 231,561 $ 173,089 $ ( 4,488 ) $ 400,162 Other revenues 5,768 1,196 - 6,964 Total revenues $ 237,329 $ 174,285 $ ( 4,488 ) $ 407,126 Timing of revenue recognition: Services transferred at a point in time $ 7,843 $ - $ - $ 7,843 Services transferred over time 223,718 173,089 ( 4,488 ) 392,319 Revenue from contracts with customers $ 231,561 $ 173,089 $ ( 4,488 ) $ 400,162 Three Months Ended September 30, 2022 Electric Utilities Gas Utilities Inter-segment Revenues Total Customer types: (in thousands) Retail $ 211,489 $ 157,203 $ - $ 368,692 Transportation - 41,006 ( 99 ) 40,907 Wholesale 13,667 - - 13,667 Market - off-system sales 16,770 186 - 16,956 Transmission/Other 15,919 8,875 ( 4,148 ) 20,646 Revenue from contracts with customers $ 257,845 $ 207,270 $ ( 4,247 ) $ 460,868 Other revenues 824 1,018 ( 98 ) 1,744 Total revenues $ 258,669 $ 208,288 $ ( 4,345 ) $ 462,612 Timing of revenue recognition: Services transferred at a point in time $ 7,928 $ - $ - $ 7,928 Services transferred over time 249,917 207,270 ( 4,247 ) 452,940 Revenue from contracts with customers $ 257,845 $ 207,270 $ ( 4,247 ) $ 460,868 Nine Months Ended September 30, 2023 Electric Utilities Gas Utilities Inter-segment Revenues Total Customer types: (in thousands) Retail $ 522,304 $ 931,129 $ - $ 1,453,433 Transportation - 131,410 ( 344 ) 131,066 Wholesale 24,578 - - 24,578 Market - off-system sales 37,487 349 - 37,836 Transmission/Other 54,727 28,833 ( 13,120 ) 70,440 Revenue from contracts with customers $ 639,096 $ 1,091,721 $ ( 13,464 ) $ 1,717,353 Other revenues 10,015 12,200 - 22,215 Total revenues $ 649,111 $ 1,103,921 $ ( 13,464 ) $ 1,739,568 Timing of revenue recognition: Services transferred at a point in time $ 24,344 $ - $ - $ 24,344 Services transferred over time 614,752 1,091,721 ( 13,464 ) 1,693,009 Revenue from contracts with customers $ 639,096 $ 1,091,721 $ ( 13,464 ) $ 1,717,353 Nine Months Ended September 30, 2022 Electric Utilities Gas Utilities Inter-segment Revenues Total Customer types: (in thousands) Retail $ 553,327 $ 947,290 $ - $ 1,500,617 Transportation - 125,196 ( 298 ) 124,898 Wholesale 32,370 - - 32,370 Market - off-system sales 32,590 602 - 33,192 Transmission/Other 46,535 27,794 ( 12,445 ) 61,884 Revenue from contracts with customers $ 664,822 $ 1,100,882 $ ( 12,743 ) $ 1,752,961 Other revenues 4,764 2,967 ( 315 ) 7,416 Total revenues $ 669,586 $ 1,103,849 $ ( 13,058 ) $ 1,760,377 Timing of revenue recognition: Services transferred at a point in time $ 21,712 $ - $ - $ 21,712 Services transferred over time 643,110 1,100,882 ( 12,743 ) 1,731,249 Revenue from contracts with customers $ 664,822 $ 1,100,882 $ ( 12,743 ) $ 1,752,961 |
Financing
Financing | 9 Months Ended |
Sep. 30, 2023 | |
Debt Disclosure [Abstract] | |
Financing | (5) Financing Shelf Registration Statement We maintain an effective shelf registration statement with the SEC under which we may issue, from time to time, an unspecified amount of senior debt securities, subordinated debt securities, common stock, preferred stock, warrants and other securities. In anticipation of the approaching expiration of our previous shelf registration statement on Form S-3 originally filed on August 4, 2020 (Registration No. 333-240320), we filed a new shelf registration statement on Form S-3 on June 16, 2023 (Registration No. 333-272739). Short-term Debt Revolving Credit Facility and CP Program On May 9, 2023, we amended and restated our corporate Revolving Credit Facility, which replaced LIBOR as a benchmark interest rate with the SOFR. The adoption of SOFR as a benchmark interest rate was in advance of the scheduled elimination of LIBOR as a benchmark interest rate on June 30, 2023. No other significant terms or conditions, including borrowing capacity, credit spreads or financial covenants were modified under these amendments and restatements. Our Revolving Credit Facility and CP Program, which are classified as Notes payable on the Consolidated Balance Sheets, had the following borrowings, outstanding letters of credit, and available capacity (dollars in thousands) as of: September 30, 2023 December 31, 2022 Amount outstanding $ — $ 535,600 Letters of credit (a) $ 3,707 $ 24,626 Available capacity $ 746,293 $ 189,774 Weighted average interest rates N/A 4.88 % (a) Letters of credit are off-balance sheet commitments that reduce the borrowing capacity available on our corporate Revolving Credit Facility . Revolving Credit Facility and CP Program borrowing activity was as follows (dollars in thousands): Nine Months Ended September 30, 2023 2022 Maximum amount outstanding (based on daily outstanding balances) $ 548,700 $ 508,200 Average amount outstanding (based on daily outstanding balances) $ 109,209 $ 347,121 Weighted average interest rates 4.91 % 1.41 % Long-term Debt On September 15, 2023, we completed a public debt offering of $ 450 million, 6.15 % senior unsecured notes due May 15, 2034. Proceeds from the offering, which were net of $ 7.2 million of deferred financing costs, were used for general corporate purposes. We also plan to use the proceeds from the offering, along with cash on hand, to repay all of our $ 525 million principal amount outstanding notes on their November 30, 2023 maturity date. On March 7, 2023, we completed a public debt offering of $ 350 million, 5.95 % five year senior unsecured notes due March 15, 2028. The proceeds from the offering, which were net of $ 4.2 million of deferred financing costs, were used to repay notes outstanding under our CP Program and for other general corporate purposes. Debt Covenants Revolving Credit Facility We were in compliance with all of our Revolving Credit Facility covenants as of September 30, 2023 . We are required to maintain a Consolidated Indebtedness to Capitalization Ratio not to exceed 0.65 to 1.00. Subject to applicable cure periods, a violation of this covenant would constitute an event of default that entitles the lenders to terminate their remaining commitments and accelerate all principal and interest outstanding. As of September 30, 2023, our Consolidated Indebtedness to Capitalization Ratio was 0.61 to 1.00. Wyoming Electric Wyoming Electric was in compliance with all covenants within its financing agreements as of September 30, 2023 . Wyoming Electric is required to maintain a debt to capitalization ratio of no more than 0.60 to 1.00. As of September 30, 2023 , Wyoming Electric's debt to capitalization ratio was 0.53 to 1.00. Equity At-the-Market Equity Offering Program As previously disclosed, on August 4, 2020, we entered into an Amended and Restated Equity Distribution Sales Agreement ("Previous Sales Agreement") to sell shares of common stock up to an aggregate of $ 400 million, from time to time, through our ATM program utilizing our shelf registration statement. On June 16, 2023, in conjunction with the new shelf registration statement filing discussed above, we entered into a new Equity Distribution Sales Agreement ("Sales Agreement") and terminated the Previous Sales Agreement. The Sales Agreement, which is similar to the Previous Sales Agreement, allows us to sell shares of common stock up to an aggregate of $ 400 million through our ATM program. ATM activity was as follows (net proceeds and issuance costs in millions): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 August 4, 2020 ATM Program Proceeds, (net of issuance costs of $ 0 , $ 0 , $( 0.5 ) and $( 0.2 ), respectively) $ - $ - $ 48.5 $ 20.2 Number of shares issued - - 775,225 272,592 June 16, 2023 ATM Program Proceeds, (net of issuance costs of $( 0.5 ), $ 0 , $( 0.6 ) and $ 0 , respectively) $ 52.8 $ - $ 59.2 $ - Number of shares issued 930,844 - 1,037,399 - Total activity under both ATM Programs Proceeds, (net of issuance costs of $( 0.5 ), $ 0 , $( 1.1 ) and $( 0.2 ), respectively) $ 52.8 $ - $ 107.7 $ 20.2 Number of shares issued 930,844 - 1,812,624 272,592 Average price per share $ 57.33 $ - $ 60.02 $ 74.84 Shareholder Dividend Reinvestment and Stock Purchase Plan Effective as of July 7, 2023, we terminated our DRSPP. On July 10, 2023, we filed a post-effective amendment to amend the Registration Statement on Form S-3 (File No. 333-240319) filed with the SEC on August 4, 2020. The filing of this post-effective amendment de-registered all shares of common stock that were issuable under the DRSPP but not sold as of July 7, 2023. With the termination of the DRSPP, a direct stock purchase plan was offered which allows shareholders to continue making share transactions. This plan is sponsored and administered solely by EQ Shareowner Services, our transfer agent. |
Earnings Per Share
Earnings Per Share | 9 Months Ended |
Sep. 30, 2023 | |
Earnings Per Share [Abstract] | |
Earnings Per Share | (6) Earnings Per Share A reconciliation of share amounts used to compute earnings per share in the accompanying Consolidated Statements of Income was as follows (in thousands, except per share amounts): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net income available for common stock $ 45,383 $ 34,973 $ 182,520 $ 185,914 Weighted average shares - basic 67,315 64,876 66,652 64,722 Dilutive effect of: Equity compensation 74 185 73 188 Weighted average shares - diluted 67,389 65,061 66,725 64,910 Earnings per share of common stock: Earnings per share, Basic $ 0.67 $ 0.54 $ 2.74 $ 2.87 Earnings per share, Diluted $ 0.67 $ 0.54 $ 2.74 $ 2.86 The following securities were excluded from the diluted earnings per share computation because of their anti-dilutive nature (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Equity compensation 74 - 48 - Restricted stock - - - - Anti-dilutive shares 74 - 48 - |
Risk Management And Derivatives
Risk Management And Derivatives | 9 Months Ended |
Sep. 30, 2023 | |
Derivative Instruments and Hedging Activities Disclosure [Abstract] | |
Risk Management And Derivatives | (7) Risk Management and Derivatives Market and Credit Risk Disclosures Our activities in the energy industry expose us to a number of risks in the normal operations of our businesses. Depending on the activity, we are exposed to varying degrees of market risk and credit risk. Valuation methodologies for our derivatives are detailed within Note 1 of the Notes to the Consolidated Financial Statements in our 2022 Annual Report on Form 10-K. Market Risk Market risk is the potential loss that may occur as a result of an adverse change in market price, rate or supply. We are exposed but not limited to, the following market risks: • Commodity price risk associated with our retail natural gas and wholesale electric power marketing activities and our fuel procurement for several of our gas-fired generation assets, which include market fluctuations due to unpredictable factors such as weather, geopolitical events, pandemics, market speculation, recession, inflation, pipeline constraints, and other factors that may impact natural gas and electric supply and demand; and • Interest rate risk associated with future debt, including reduced access to liquidity during periods of extreme capital markets volatility. Credit Risk Credit risk is the risk of financial loss resulting from non-performance of contractual obligations by a counterparty. We attempt to mitigate our credit exposure by conducting business primarily with high credit quality entities, setting tenor and credit limits commensurate with counterparty financial strength, obtaining master netting agreements and mitigating credit exposure with less creditworthy counterparties through parental guarantees, cash collateral requirements, letters of credit and other security agreements. We perform periodic credit evaluations of our customers and adjust credit limits based upon payment history and the customers’ current creditworthiness, as determined by review of their current credit information. We maintain a provision for estimated credit losses based upon historical experience, changes in current market conditions, expected losses and any specific customer collection issue that is identified. Derivatives and Hedging Activity Our derivative and hedging activities included in the accompanying Consolidated Balance Sheets, Consolidated Statements of Income and Consolidated Statements of Comprehensive Income are detailed below and in Note 8 . The operations of our Utilities, including natural gas sold by our Gas Utilities and natural gas used by our Electric Utilities’ generation plants or those plants under PPAs where our Electric Utilities must provide the generation fuel (tolling agreements), expose our utility customers to natural gas price volatility. Therefore, as allowed or required by state utility commissions, we enter into commission approved hedging programs utilizing natural gas futures, options, over-the-counter swaps and basis swaps to reduce our customers’ underlying exposure to these fluctuations. These transactions are considered derivatives, and in accordance with accounting standards for derivatives and hedging, mark-to-market adjustments are recorded as Derivative assets or Derivative liabilities on the accompanying Consolidated Balance Sheets, net of balance sheet offsetting as permitted by GAAP. For our regulated Utilities’ hedging plans, unrealized and realized gains and losses, as well as option premiums and commissions on these transactions, are recorded as Regulatory assets or Regulatory liabilities in the accompanying Consolidated Balance Sheets in accordance with the state regulatory commission guidelines. When the related costs are recovered through our rates, the hedging activity is recognized in the Consolidated Statements of Income. We use wholesale power purchase and sale contracts to manage purchased power costs and load requirements associated with serving our electric customers. Periodically, certain wholesale energy contracts are considered derivative instruments due to not qualifying for the normal purchase and normal sales exception to derivative accounting. Changes in the fair value of these commodity derivatives are recognized in the Consolidated Statements of Income. To support our Choice Gas Program customers, we buy, sell and deliver natural gas at competitive prices by managing commodity price risk. As a result of these activities, this area of our business is exposed to risks associated with changes in the market price of natural gas. We manage our exposure to such risks using over-the-counter and exchange traded options and swaps with counterparties in anticipation of forecasted purchases and sales during time frames ranging from October 2023 through October 2025. A portion of our over-the-counter swaps have been designated as cash flow hedges to mitigate the commodity price risk associated with deliveries under fixed price forward contracts to deliver gas to our Choice Gas Program customers. The gain or loss on these designated derivatives is reported in AOCI in the accompanying Consolidated Balance Sheets and reclassified into earnings in the same period that the underlying hedged item is recognized in earnings. Effectiveness of our hedging position is evaluated at least quarterly. The contract or notional amounts and terms of the electric and natural gas derivative commodity instruments held at our Utilities are composed of both long and short positions. We had the following net long positions as of: September 30, 2023 December 31, 2022 Notional Amounts (MMBtus) Maximum Term (months) (a) Notional Amounts (MMBtus) Maximum Term (months) (a) Natural gas futures purchased 1,730,000 6 630,000 3 Natural gas options purchased, net 7,780,000 6 1,790,000 3 Natural gas basis swaps purchased 1,730,000 6 900,000 3 Natural gas over-the-counter swaps, net (b) 5,610,000 24 4,460,000 24 Natural gas physical contracts, net (c) 21,323,455 7 17,864,412 12 (a) Term reflects the maximum forward period hedged. (b) As of September 30, 2023 , 2,979,300 MMBtus of natural gas over-the-counter swaps purchases were designated as cash flow hedges. (c) Volumes exclude derivative contracts that qualify for the normal purchases and normal sales exception permitted by GAAP. We have certain derivative contracts which contain credit provisions. These credit provisions may require the Company to post collateral when credit exposure to the Company is in excess of a negotiated line of unsecured credit. At September 30, 2023, the Company post ed $ 0.6 million re lated to such provisions, which is included in Other current assets on the Consolidated Balance Sheets. Derivatives by Balance Sheet Classification The following table presents the fair value and balance sheet classification of our derivative instruments (in thousands) as of: Balance Sheet Location September 30, December 31, Derivatives designated as hedges: Asset derivative instruments: Current commodity derivatives Derivative assets, current $ - $ 118 Noncurrent commodity derivatives Other assets, non-current ( 18 ) 198 Liability derivative instruments: Current commodity derivatives Derivative liabilities, current 143 ( 1,703 ) Noncurrent commodity derivatives Other assets, non-current ( 20 ) - Total derivatives designated as hedges $ 105 $ ( 1,387 ) Derivatives not designated as hedges: Asset derivative instruments: Current commodity derivatives Derivative assets, current $ 126 $ 464 Noncurrent commodity derivatives Other assets, non-current 18 337 Liability derivative instruments: Current commodity derivatives Derivative liabilities, current ( 2,336 ) ( 4,897 ) Noncurrent commodity derivatives Other deferred credits and other liabilities 2 ( 18 ) Total derivatives not designated as hedges $ ( 2,190 ) $ ( 4,114 ) Derivatives Designated as Hedge Instruments The impacts of cash flow hedges on our Consolidated Statements of Comprehensive Income and Consolidated Statements of Income are presented below for the three and nine months ended September 30, 2023 and 2022. Note that this presentation does not reflect the gains or losses arising from the underlying physical transactions; therefore, it is not indicative of the economic profit or loss we realized when the underlying physical and financial transactions were settled. Three Months Ended Three Months Ended 2023 2022 2023 2022 Derivatives in Cash Flow Hedging Relationships Amount of Gain/(Loss) Recognized in OCI Income Statement Location Amount of Gain/(Loss) Reclassified from AOCI into Income (in thousands) (in thousands) Interest rate swaps $ 712 $ 712 Interest expense $ ( 712 ) $ ( 712 ) Commodity derivatives ( 219 ) 2,292 Fuel, purchased power and cost of natural gas sold ( 34 ) 43 Total $ 493 $ 3,004 $ ( 746 ) $ ( 669 ) Nine Months Ended Nine Months Ended 2023 2022 2023 2022 Derivatives in Cash Flow Hedging Relationships Amount of Gain/(Loss) Recognized in OCI Income Statement Location Amount of Gain/(Loss) Reclassified from AOCI into Income (in thousands) (in thousands) Interest rate swaps $ 2,138 $ 2,138 I nterest expense $ ( 2,138 ) $ ( 2,138 ) Commodity derivatives 1,244 ( 2,946 ) Fuel, purchased power and cost of natural gas sold ( 2,473 ) 3,620 Total $ 3,382 $ ( 808 ) $ ( 4,611 ) $ 1,482 As of September 30, 2023, $ 3.2 million o f net losses related to our interest rate swaps and commodity derivatives are expected to be reclassified from AOCI into earnings within the next 12 months. As market prices fluctuate, estimated and actual realized gains or losses will change during future periods. Derivatives Not Designated as Hedge Instruments The following table summarizes the impacts of derivative instruments not designated as hedge instruments on our Consolidated Statements of Income for the three and nine months ended September 30, 2023 and 2022. Note that this presentation does not reflect the expected gains or losses arising from the underlying physical transactions; therefore, it is not indicative of the economic profit or loss we realized when the underlying physical and financial transactions were settled. Three Months Ended September 30, 2023 2022 Derivatives Not Designated as Hedging Instruments Location of Gain/(Loss) on Derivatives Recognized in Income Amount of Gain/(Loss) on Derivatives Recognized in Income (in thousands) Commodity derivatives Fuel, purchased power and cost of natural gas sold $ 255 $ 1,617 $ 255 $ 1,617 Nine Months Ended September 30, 2023 2022 Derivatives Not Designated as Hedging Instruments Location of Gain/(Loss) on Derivatives Recognized in Income Amount of Gain/(Loss) on Derivatives Recognized in Income (in thousands) Commodity derivatives Fuel, purchased power and cost of natural gas sold $ ( 2,445 ) $ 2,779 $ ( 2,445 ) $ 2,779 As discussed above, financial instruments used in our regulated Gas Utilities are not designated as cash flow hedges. However, there is no earnings impact because the unrealized gains and losses arising from the use of these financial instruments are recorded as Regulatory assets or Regulatory liabilities. The net unrealized losses included in our Regulatory asset accounts related to these financial instruments in our Gas Utilities were $ 3.8 million and $ 8.8 million as of as of September 30, 2023 and December 31, 2022 , respectively. |
Fair Value Measurements
Fair Value Measurements | 9 Months Ended |
Sep. 30, 2023 | |
Fair Value Disclosures [Abstract] | |
Fair Value Measurements | (8) Fair Value Measurements We use the following fair value hierarchy for determining inputs for our financial instruments. Our assets and liabilities for financial instruments are classified and disclosed in one of the following fair value categories: Level 1 — Unadjusted quoted prices available in active markets that are accessible at the measurement date for identical unrestricted assets or liabilities. Level 1 instruments primarily consist of highly liquid and actively traded financial instruments with quoted pricing information on an ongoing basis. Level 2 — Pricing inputs include quoted prices for identical or similar assets and liabilities in active markets other than quoted prices in Level 1, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 3 — Pricing inputs are generally less observable from objective sources. These inputs reflect management’s best estimate of fair value using its own assumptions about the assumptions a market participant would use in pricing the asset or liability. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the placement within the fair value hierarchy levels. We record transfers, if necessary, between levels at the end of the reporting period for all of our financial instruments. Transfers into Level 3, if any, occur when significant inputs used to value the derivative instruments become less observable, such as a significant decrease in the frequency and volume in which the instrument is traded, negatively impacting the availability of observable pricing inputs. Transfers out of Level 3, if any, occur when the significant inputs become more observable, such as when the time between the valuation date and the delivery date of a transaction becomes shorter, positively impacting the availability of observable pricing inputs. Recurring Fair Value Measurements Derivatives The commodity contracts for our Utilities segments are valued using the market approach and include forward strip pricing at liquid delivery points, exchange-traded futures, options, basis swaps and over-the-counter swaps and options (Level 2) for wholesale electric energy and natural gas contracts. For exchange-traded futures, options and basis swap assets and liabilities, fair value was derived using broker quotes validated by the exchange settlement pricing for the applicable contract. For over-the-counter instruments, the fair value is obtained by utilizing a nationally recognized service that obtains observable inputs to compute the fair value, which we validate by comparing our valuation with the counterparty. The fair value of these swaps includes a credit valuation adjustment based on the credit spreads of the counterparties when we are in an unrealized gain position or on our own credit spread when we are in an unrealized loss position. For additional information, see Note 1 of our Notes to the Consolidated Financial Statements in our 2022 Annual Report on Form 10-K. The following tables set forth, by level within the fair value hierarchy, our gross assets and gross liabilities and related offsetting of cash collateral and contractual netting rights as permitted by GAAP that were accounted for at fair value on a recurring basis for derivative instruments. As of September 30, 2023 Level 1 Level 2 Level 3 Cash Collateral and Counterparty Netting (a) Total (in thousands) Assets: Commodity derivatives - Gas Utilities $ - $ 5,183 $ - $ ( 5,057 ) $ 126 Total $ - $ 5,183 $ - $ ( 5,057 ) $ 126 Liabilities: Commodity derivatives - Gas Utilities $ - $ 4,809 $ - $ ( 2,598 ) $ 2,211 Total $ - $ 4,809 $ - $ ( 2,598 ) $ 2,211 (a) As of September 30, 2023, $ 5.1 million of our commodity derivative assets and $ 2.6 million of our commodity derivative liabilities, as well as related gross collateral amounts, were subject to master netting agreements . As of December 31, 2022 Level 1 Level 2 Level 3 Cash Collateral and Counterparty Netting (a) Total (in thousands) Assets: Commodity derivatives - Gas Utilities $ - $ 5,407 $ - $ ( 4,290 ) $ 1,117 Total $ - $ 5,407 $ - $ ( 4,290 ) $ 1,117 Liabilities: Commodity derivatives - Gas Utilities $ - $ 11,455 $ - $ ( 4,837 ) $ 6,618 Total $ - $ 11,455 $ - $ ( 4,837 ) $ 6,618 (a) As of December 31, 2022 , $ 4.3 million of our commodity derivative assets and $ 4.8 million of our commodity derivative liabilities, as well as related gross collateral amounts, were subject to master netting agreements. Pension and Postretirement Plan Assets Fair value measurements also apply to the valuation of our pension and postretirement plan assets. Current accounting guidance requires employers to annually disclose information about the fair value measurements of their assets of a defined benefit pension or other postretirement plan. The fair value of these assets is presented in Note 13 to the Consolidated Financial Statements included in our 2022 Annual Report on Form 10-K. Other Fair Value Measures The carrying amount of cash and cash equivalents, restricted cash and equivalents and short-term borrowings approximates fair value due to their liquid or short-term nature. Cash, cash equivalents and restricted cash are classified in Level 1 in the fair value hierarchy. Notes payable consist of commercial paper borrowings and are not traded on an exchange; therefore, they are classified as Level 2 in the fair value hierarchy. The following table presents the carrying amounts and fair values of financial instruments not recorded at fair value on the Consolidated Balance Sheets (in thousands) as of: September 30, 2023 December 31, 2022 Carrying Amount Fair Value Carrying Amount Fair Value Long-term debt, including current maturities (a) $ 4,924,510 $ 4,481,989 $ 4,132,340 $ 3,760,848 (a) Long-term debt is valued based on observable inputs available either directly or indirectly for similar liabilities in active markets and therefore is classified in Level 2 in the fair value hierarchy. Carrying amount of long-term debt is net of deferred financing costs. |
Other Comprehensive Income
Other Comprehensive Income | 9 Months Ended |
Sep. 30, 2023 | |
Statement of Comprehensive Income [Abstract] | |
Other Comprehensive Income | (9) Other Comprehensive Income We record deferred gains (losses) in AOCI related to interest rate swaps designated as cash flow hedges, commodity contracts designated as cash flow hedges and the amortization of components of our defined benefit plans. Deferred gains (losses) for our commodity contracts designated as cash flow hedges are recognized in earnings upon settlement, while deferred gains (losses) related to our interest rate swaps are recognized in earnings as they are amortized. The following table details reclassifications out of AOCI and into Net income. The amounts in parentheses below indicate decreases to Net income in the Consolidated Statements of Income for the period, net of tax (in thousands): Amount Reclassified from AOCI Amount Reclassified from AOCI Location on the Consolidated Statements of Income Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Gains and (losses) on cash flow hedges: Interest rate swaps Interest expense $ ( 712 ) $ ( 712 ) $ ( 2,138 ) $ ( 2,138 ) Commodity contracts Fuel, purchased power and cost of natural gas sold ( 34 ) 43 ( 2,473 ) 3,620 $ ( 746 ) $ ( 669 ) $ ( 4,611 ) $ 1,482 Income tax Income tax expense 170 124 1,081 ( 332 ) Total reclassification adjustments related to cash flow hedges, net of tax $ ( 576 ) $ ( 545 ) $ ( 3,530 ) $ 1,150 Amortization of components of defined benefit plans: Prior service cost Operations and maintenance $ - $ 24 $ - $ 70 Actuarial gain (loss) Operations and maintenance ( 43 ) ( 188 ) ( 129 ) ( 563 ) $ ( 43 ) $ ( 164 ) $ ( 129 ) $ ( 493 ) Income tax Income tax expense 19 58 62 157 Total reclassification adjustments related to defined benefit plans, net of tax $ ( 24 ) $ ( 106 ) $ ( 67 ) $ ( 336 ) Total reclassifications $ ( 600 ) $ ( 651 ) $ ( 3,597 ) $ 814 Balances by classification included within AOCI, net of tax on the accompanying Consolidated Balance Sheets were as follows (in thousands): Derivatives Designated as Cash Flow Hedges Interest Rate Swaps Commodity Derivatives Employee Benefit Plans Total As of December 31, 2022 $ ( 8,255 ) $ ( 1,200 ) $ ( 6,112 ) $ ( 15,567 ) Other comprehensive income (loss) before reclassifications - ( 937 ) - ( 937 ) Amounts reclassified from AOCI 1,649 1,881 67 3,597 As of September 30, 2023 $ ( 6,606 ) $ ( 256 ) $ ( 6,045 ) $ ( 12,907 ) Derivatives Designated as Cash Flow Hedges Interest Rate Swaps Commodity Derivatives Employee Benefit Plans Total As of December 31, 2021 $ ( 10,384 ) $ 1,476 $ ( 11,176 ) $ ( 20,084 ) Other comprehensive income (loss) before reclassifications - 509 - 509 Amounts reclassified from AOCI 1,589 ( 2,739 ) 336 ( 814 ) As of September 30, 2022 $ ( 8,795 ) $ ( 754 ) $ ( 10,840 ) $ ( 20,389 ) |
Employee Benefits Plans
Employee Benefits Plans | 9 Months Ended |
Sep. 30, 2023 | |
Retirement Benefits [Abstract] | |
Employee Benefit Plans | (10) Employee Benefit Plans Components of Net Periodic Expense The components of net periodic expense were as follows (in thousands): Defined Benefit Pension Plan Supplemental Non-qualified Defined Benefit Plans Non-pension Defined Benefit Postretirement Healthcare Plan Three Months Ended September 30, 2023 2022 2023 2022 2023 2022 Service cost $ 614 $ 982 $ ( 77 ) $ ( 271 ) $ 381 $ 492 Interest cost 4,381 2,705 369 209 594 321 Expected return on plan assets ( 4,672 ) ( 4,631 ) - - ( 55 ) ( 31 ) Net amortization of prior service costs ( 17 ) ( 17 ) - - 10 ( 72 ) Recognized net actuarial loss 498 1,522 8 69 ( 3 ) 16 Net periodic expense (benefit) $ 804 $ 561 $ 300 $ 7 $ 927 $ 726 Defined Benefit Pension Plan Supplemental Non-qualified Defined Benefit Plans Non-pension Defined Benefit Postretirement Healthcare Plan Nine Months Ended September 30, 2023 2022 2023 2022 2023 2022 Service cost $ 1,842 $ 2,946 $ 1,607 $ ( 2,018 ) $ 1,143 $ 1,476 Interest cost 13,142 8,114 1,107 626 1,783 963 Expected return on plan assets ( 14,016 ) ( 13,892 ) - - ( 167 ) ( 93 ) Net amortization of prior service costs ( 51 ) ( 51 ) - - 30 ( 217 ) Recognized net actuarial loss (gain) 1,494 4,568 24 207 ( 9 ) 48 Net periodic expense (benefit) $ 2,411 $ 1,685 $ 2,738 $ ( 1,185 ) $ 2,780 $ 2,177 Plan Contributions Contributions to the Defined Benefit Pension Plan are cash contributions made directly to the Pension Plan Trust account. Contributions to the Postretirement Healthcare and Supplemental Plans are primarily made in the form of benefit payments. Contributions made in the first nine months of 2023 and anticipated contributions for 2023 and 2024 are as follows (in thousands): Contributions Made Additional Contributions Contributions Nine Months Ended September 30, 2023 Anticipated for Anticipated for Defined Benefit Pension Plan $ - $ - $ - Non-pension Defined Benefit Postretirement Healthcare Plan $ 3,690 $ 1,230 $ 4,808 Supplemental Non-qualified Defined Benefit and Defined Contribution Plans $ 1,673 $ 558 $ 2,417 |
Income Taxes
Income Taxes | 9 Months Ended |
Sep. 30, 2023 | |
Income Tax Disclosure [Abstract] | |
Income Taxes | (11) Income Taxes IRS Revenue Procedure 2023-15 On April 14, 2023, the IRS released Revenue Procedure 2023-15 “Amounts paid to improve tangible property.” The Revenue Procedure provides a safe harbor method of accounting that taxpayers may use to determine whether costs to repair, maintain, replace, or improve natural gas transmission and distribution property must be capitalized. We are currently assessing the Revenue Procedure to determine its impact on our tax repairs deduction. Income Tax Benefit (Expense) and Effective Tax Rates Three Months Ended September 30, 2023 Compared to the Three Months Ended September 30, 2022 Income tax (expense) for the three months ended September 30, 2023 was $( 7.4 ) million compared to $( 2.1 ) million reported for the same period in 2022. For the three months ended September 30, 2023, the effective tax rate was 13.1 % compared to 5.2 % for the same period in 2022 . The higher effective tax rate was primarily due to $ 1.4 million of lower tax benefits from various current and prior year state rate changes. Nine Months Ended September 30, 2023 Compared to the Nine Months Ended September 30, 2022 Income tax (expense) for the nine months ended September 30, 2023 was $( 16.0 ) million compared to $( 15.9 ) million reported for the same period in 2022. For the nine months ended September 30, 2023, the effective tax rate was 7.6 % compared to 7.6 % for the same period in 2022 . The effective tax rate was comparable primarily due to a $ 8.2 million tax benefit from a current year Nebraska income tax rate decrease offset by $ 5.8 million of lower tax benefits from various current and prior year state tax rate changes and $ 2.3 million of lower wind PTCs driven by the March 2023 sale of Northern Iowa Windpower assets. |
Business Segment Information
Business Segment Information | 9 Months Ended |
Sep. 30, 2023 | |
Segment Reporting Information, Additional Information [Abstract] | |
Business Segment Information | (12) Business Segment Information Our Chief Executive Officer, who is considered to be our CODM, reviews financial information presented on an operating segment basis for purposes of making decisions, allocating resources and assessing financial performance. Our CODM assesses the performance of our operating segments based on operating income. We conduct our business operations through two operating segments: Electric Utilities and Gas Utilities. Certain unallocated corporate expenses that support our operating segments are presented as Corporate and Other. Our operating segments are equivalent to our reportable segments. Segment information was as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Revenues: Electric Utilities External Customers $ 234,490 $ 255,741 $ 640,595 $ 660,800 Inter-segment 2,839 2,928 8,516 8,786 Total Electric Utilities Revenue 237,329 258,669 649,111 669,586 Gas Utilities External Customers 172,636 206,871 1,098,973 1,099,577 Inter-segment 1,649 1,417 4,948 4,272 Total Gas Utilities Revenue 174,285 208,288 1,103,921 1,103,849 Inter-segment eliminations ( 4,488 ) ( 4,345 ) ( 13,464 ) ( 13,058 ) Total Revenues $ 407,126 $ 462,612 $ 1,739,568 $ 1,760,377 Operating income (loss): Electric Utilities $ 83,016 $ 69,483 $ 190,695 $ 165,455 Gas Utilities 15,400 10,583 147,750 162,318 Corporate and Other ( 645 ) ( 587 ) ( 2,275 ) ( 2,552 ) Total Operating Income $ 97,771 $ 79,479 $ 336,170 $ 325,221 Total assets (net of inter-segment eliminations) as of: September 30, 2023 December 31, 2022 Electric Utilities $ 3,938,835 $ 3,929,721 Gas Utilities 5,301,383 5,578,282 Corporate and Other 692,710 110,227 Total assets $ 9,932,928 $ 9,618,230 |
Selected Balance Sheet Informat
Selected Balance Sheet Information | 9 Months Ended |
Sep. 30, 2023 | |
Selected Balance Sheet Information [Abstract] | |
Selected Balance Sheet Information | (13) Selected Balance Sheet Information Accounts Receivable and Allowance for Credit Losses Following is a summary of Accounts receivable, net included in the accompanying Consolidated Balance Sheets (in thousands) as of: September 30, 2023 December 31, 2022 Billed Accounts Receivable $ 164,171 $ 267,571 Unbilled Revenue 66,478 243,574 Less: Allowance for Credit Losses ( 1,819 ) ( 2,953 ) Account Receivable, net $ 228,830 $ 508,192 Changes to allowance for credit losses for the nine months ended September 30, 2023 and 2022, respectively, were as follows (in thousands): Balance at Beginning of Year Additions Charged to Costs and Expenses Recoveries and Other Additions Write-offs and Other Deductions Balance at September 30, 2023 $ 2,953 $ 7,195 $ 2,445 $ ( 10,774 ) $ 1,819 2022 $ 2,113 $ 6,473 $ 2,117 $ ( 8,768 ) $ 1,935 Materials, Supplies and Fuel The following amounts by major classification are included in Materials, supplies and fuel on the accompanying Consolidated Balance Sheets (in thousands) as of: September 30, 2023 December 31, 2022 Materials and supplies $ 104,945 $ 99,734 Fuel - Electric Utilities 7,674 3,115 Natural gas in storage 55,460 104,572 Total materials, supplies and fuel $ 168,079 $ 207,421 Accrued Liabilities The following amounts by major classification are included in Accrued liabilities on the accompanying Consolidated Balance Sheets (in thousands) as of: September 30, 2023 December 31, 2022 Accrued employee compensation, benefits and withholdings $ 65,620 $ 62,890 Accrued property taxes 46,309 52,430 Customer deposits and prepayments 57,100 47,655 Accrued interest 49,314 33,798 Other (none of which is individually significant) 39,115 46,684 Total accrued liabilities $ 257,458 $ 243,457 |
Subsequent Events
Subsequent Events | 9 Months Ended |
Sep. 30, 2023 | |
Subsequent Events [Abstract] | |
Subsequent Events | (14) Subsequent Events Except as described in Notes 2 and 3 , there have been no events subsequent to September 30, 2023, which would require recognition in the Consolidated Financial Statements or disclosures. |
Management's Statement (Policie
Management's Statement (Policies) | 9 Months Ended |
Sep. 30, 2023 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Use of Estimates and Basis of Presentation | Use of Estimates and Basis of Presentation The information furnished in the accompanying Consolidated Financial Statements reflects certain estimates required and all adjustments, including accruals, which are, in the opinion of management, necessary for a fair presentation of the September 30, 2023, December 31, 2022 and September 30, 2022 financial information. Certain lines of business in which we operate are highly seasonal, and our interim results of operations are not necessarily indicative of the results of operations to be expected for an entire year. |
Regulatory Matters (Tables)
Regulatory Matters (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Regulated Operations [Abstract] | |
Schedule of Regulatory Assets and Liabilities | We had the following regulatory assets and liabilities (in thousands): As of As of September 30, 2023 December 31, 2022 Regulatory assets Winter Storm Uri $ 225,052 $ 347,980 Deferred energy and fuel cost adjustments 59,129 72,580 Deferred gas cost adjustments 8,048 12,147 Gas price derivatives 3,849 8,793 Deferred taxes on AFUDC 7,180 7,333 Employee benefit plans and related deferred taxes 87,423 89,259 Environmental 2,868 1,343 Loss on reacquired debt 17,865 19,213 Deferred taxes on flow through accounting 69,259 69,529 Decommissioning costs 2,407 3,472 Other regulatory assets 21,779 21,332 Total regulatory assets 504,859 652,981 Less current regulatory assets ( 191,746 ) ( 260,312 ) Regulatory assets, non-current $ 313,113 $ 392,669 Regulatory liabilities Deferred energy and gas costs $ 91,273 $ 41,722 Employee benefit plan costs and related deferred taxes 33,006 34,258 Cost of removal 179,208 175,614 Excess deferred income taxes 250,390 254,833 Other regulatory liabilities 9,080 12,146 Total regulatory liabilities 562,957 518,573 Less current regulatory liabilities ( 93,988 ) ( 46,013 ) Regulatory liabilities, non-current $ 468,969 $ 472,560 |
Revenue (Tables)
Revenue (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Revenue from Contract with Customer [Abstract] | |
Disaggregation of Revenue | The following tables depict the disaggregation of revenue, including intercompany revenue, from contracts with customers by customer type and timing of revenue recognition for each of the reportable segments for the three and nine months ended September 30, 2023 and 2022. Sales tax and other similar taxes are excluded from revenues. Three Months Ended September 30, 2023 Electric Utilities Gas Utilities Inter-segment Revenues Total Customer types: (in thousands) Retail $ 191,029 $ 120,803 $ - $ 311,832 Transportation - 42,654 ( 114 ) 42,540 Wholesale 9,441 - - 9,441 Market - off-system sales 12,999 25 - 13,024 Transmission/Other 18,092 9,607 ( 4,374 ) 23,325 Revenue from contracts with customers $ 231,561 $ 173,089 $ ( 4,488 ) $ 400,162 Other revenues 5,768 1,196 - 6,964 Total revenues $ 237,329 $ 174,285 $ ( 4,488 ) $ 407,126 Timing of revenue recognition: Services transferred at a point in time $ 7,843 $ - $ - $ 7,843 Services transferred over time 223,718 173,089 ( 4,488 ) 392,319 Revenue from contracts with customers $ 231,561 $ 173,089 $ ( 4,488 ) $ 400,162 Three Months Ended September 30, 2022 Electric Utilities Gas Utilities Inter-segment Revenues Total Customer types: (in thousands) Retail $ 211,489 $ 157,203 $ - $ 368,692 Transportation - 41,006 ( 99 ) 40,907 Wholesale 13,667 - - 13,667 Market - off-system sales 16,770 186 - 16,956 Transmission/Other 15,919 8,875 ( 4,148 ) 20,646 Revenue from contracts with customers $ 257,845 $ 207,270 $ ( 4,247 ) $ 460,868 Other revenues 824 1,018 ( 98 ) 1,744 Total revenues $ 258,669 $ 208,288 $ ( 4,345 ) $ 462,612 Timing of revenue recognition: Services transferred at a point in time $ 7,928 $ - $ - $ 7,928 Services transferred over time 249,917 207,270 ( 4,247 ) 452,940 Revenue from contracts with customers $ 257,845 $ 207,270 $ ( 4,247 ) $ 460,868 Nine Months Ended September 30, 2023 Electric Utilities Gas Utilities Inter-segment Revenues Total Customer types: (in thousands) Retail $ 522,304 $ 931,129 $ - $ 1,453,433 Transportation - 131,410 ( 344 ) 131,066 Wholesale 24,578 - - 24,578 Market - off-system sales 37,487 349 - 37,836 Transmission/Other 54,727 28,833 ( 13,120 ) 70,440 Revenue from contracts with customers $ 639,096 $ 1,091,721 $ ( 13,464 ) $ 1,717,353 Other revenues 10,015 12,200 - 22,215 Total revenues $ 649,111 $ 1,103,921 $ ( 13,464 ) $ 1,739,568 Timing of revenue recognition: Services transferred at a point in time $ 24,344 $ - $ - $ 24,344 Services transferred over time 614,752 1,091,721 ( 13,464 ) 1,693,009 Revenue from contracts with customers $ 639,096 $ 1,091,721 $ ( 13,464 ) $ 1,717,353 Nine Months Ended September 30, 2022 Electric Utilities Gas Utilities Inter-segment Revenues Total Customer types: (in thousands) Retail $ 553,327 $ 947,290 $ - $ 1,500,617 Transportation - 125,196 ( 298 ) 124,898 Wholesale 32,370 - - 32,370 Market - off-system sales 32,590 602 - 33,192 Transmission/Other 46,535 27,794 ( 12,445 ) 61,884 Revenue from contracts with customers $ 664,822 $ 1,100,882 $ ( 12,743 ) $ 1,752,961 Other revenues 4,764 2,967 ( 315 ) 7,416 Total revenues $ 669,586 $ 1,103,849 $ ( 13,058 ) $ 1,760,377 Timing of revenue recognition: Services transferred at a point in time $ 21,712 $ - $ - $ 21,712 Services transferred over time 643,110 1,100,882 ( 12,743 ) 1,731,249 Revenue from contracts with customers $ 664,822 $ 1,100,882 $ ( 12,743 ) $ 1,752,961 |
Financing (Tables)
Financing (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Debt Disclosure [Abstract] | |
Schedule of Short-term Debt | Our Revolving Credit Facility and CP Program, which are classified as Notes payable on the Consolidated Balance Sheets, had the following borrowings, outstanding letters of credit, and available capacity (dollars in thousands) as of: September 30, 2023 December 31, 2022 Amount outstanding $ — $ 535,600 Letters of credit (a) $ 3,707 $ 24,626 Available capacity $ 746,293 $ 189,774 Weighted average interest rates N/A 4.88 % (a) Letters of credit are off-balance sheet commitments that reduce the borrowing capacity available on our corporate Revolving Credit Facility . Revolving Credit Facility and CP Program borrowing activity was as follows (dollars in thousands): Nine Months Ended September 30, 2023 2022 Maximum amount outstanding (based on daily outstanding balances) $ 548,700 $ 508,200 Average amount outstanding (based on daily outstanding balances) $ 109,209 $ 347,121 Weighted average interest rates 4.91 % 1.41 % |
Summary of ATM Activity | ATM activity was as follows (net proceeds and issuance costs in millions): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 August 4, 2020 ATM Program Proceeds, (net of issuance costs of $ 0 , $ 0 , $( 0.5 ) and $( 0.2 ), respectively) $ - $ - $ 48.5 $ 20.2 Number of shares issued - - 775,225 272,592 June 16, 2023 ATM Program Proceeds, (net of issuance costs of $( 0.5 ), $ 0 , $( 0.6 ) and $ 0 , respectively) $ 52.8 $ - $ 59.2 $ - Number of shares issued 930,844 - 1,037,399 - Total activity under both ATM Programs Proceeds, (net of issuance costs of $( 0.5 ), $ 0 , $( 1.1 ) and $( 0.2 ), respectively) $ 52.8 $ - $ 107.7 $ 20.2 Number of shares issued 930,844 - 1,812,624 272,592 Average price per share $ 57.33 $ - $ 60.02 $ 74.84 |
Earnings Per Share (Tables)
Earnings Per Share (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Earnings Per Share [Abstract] | |
Schedule of Earnings Per Share Reconciliation | A reconciliation of share amounts used to compute earnings per share in the accompanying Consolidated Statements of Income was as follows (in thousands, except per share amounts): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net income available for common stock $ 45,383 $ 34,973 $ 182,520 $ 185,914 Weighted average shares - basic 67,315 64,876 66,652 64,722 Dilutive effect of: Equity compensation 74 185 73 188 Weighted average shares - diluted 67,389 65,061 66,725 64,910 Earnings per share of common stock: Earnings per share, Basic $ 0.67 $ 0.54 $ 2.74 $ 2.87 Earnings per share, Diluted $ 0.67 $ 0.54 $ 2.74 $ 2.86 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | The following securities were excluded from the diluted earnings per share computation because of their anti-dilutive nature (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Equity compensation 74 - 48 - Restricted stock - - - - Anti-dilutive shares 74 - 48 - |
Risk Management And Derivativ_2
Risk Management And Derivatives (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Derivative Instruments and Hedging Activities Disclosure [Abstract] | |
Contract or notional amounts and terms of marketing activities and derivative commodity instruments | The contract or notional amounts and terms of the electric and natural gas derivative commodity instruments held at our Utilities are composed of both long and short positions. We had the following net long positions as of: September 30, 2023 December 31, 2022 Notional Amounts (MMBtus) Maximum Term (months) (a) Notional Amounts (MMBtus) Maximum Term (months) (a) Natural gas futures purchased 1,730,000 6 630,000 3 Natural gas options purchased, net 7,780,000 6 1,790,000 3 Natural gas basis swaps purchased 1,730,000 6 900,000 3 Natural gas over-the-counter swaps, net (b) 5,610,000 24 4,460,000 24 Natural gas physical contracts, net (c) 21,323,455 7 17,864,412 12 (a) Term reflects the maximum forward period hedged. (b) As of September 30, 2023 , 2,979,300 MMBtus of natural gas over-the-counter swaps purchases were designated as cash flow hedges. (c) Volumes exclude derivative contracts that qualify for the normal purchases and normal sales exception permitted by GAAP. |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value | The following table presents the fair value and balance sheet classification of our derivative instruments (in thousands) as of: Balance Sheet Location September 30, December 31, Derivatives designated as hedges: Asset derivative instruments: Current commodity derivatives Derivative assets, current $ - $ 118 Noncurrent commodity derivatives Other assets, non-current ( 18 ) 198 Liability derivative instruments: Current commodity derivatives Derivative liabilities, current 143 ( 1,703 ) Noncurrent commodity derivatives Other assets, non-current ( 20 ) - Total derivatives designated as hedges $ 105 $ ( 1,387 ) Derivatives not designated as hedges: Asset derivative instruments: Current commodity derivatives Derivative assets, current $ 126 $ 464 Noncurrent commodity derivatives Other assets, non-current 18 337 Liability derivative instruments: Current commodity derivatives Derivative liabilities, current ( 2,336 ) ( 4,897 ) Noncurrent commodity derivatives Other deferred credits and other liabilities 2 ( 18 ) Total derivatives not designated as hedges $ ( 2,190 ) $ ( 4,114 ) |
Derivative Instruments, Gain (Loss) | The impacts of cash flow hedges on our Consolidated Statements of Comprehensive Income and Consolidated Statements of Income are presented below for the three and nine months ended September 30, 2023 and 2022. Note that this presentation does not reflect the gains or losses arising from the underlying physical transactions; therefore, it is not indicative of the economic profit or loss we realized when the underlying physical and financial transactions were settled. Three Months Ended Three Months Ended 2023 2022 2023 2022 Derivatives in Cash Flow Hedging Relationships Amount of Gain/(Loss) Recognized in OCI Income Statement Location Amount of Gain/(Loss) Reclassified from AOCI into Income (in thousands) (in thousands) Interest rate swaps $ 712 $ 712 Interest expense $ ( 712 ) $ ( 712 ) Commodity derivatives ( 219 ) 2,292 Fuel, purchased power and cost of natural gas sold ( 34 ) 43 Total $ 493 $ 3,004 $ ( 746 ) $ ( 669 ) Nine Months Ended Nine Months Ended 2023 2022 2023 2022 Derivatives in Cash Flow Hedging Relationships Amount of Gain/(Loss) Recognized in OCI Income Statement Location Amount of Gain/(Loss) Reclassified from AOCI into Income (in thousands) (in thousands) Interest rate swaps $ 2,138 $ 2,138 I nterest expense $ ( 2,138 ) $ ( 2,138 ) Commodity derivatives 1,244 ( 2,946 ) Fuel, purchased power and cost of natural gas sold ( 2,473 ) 3,620 Total $ 3,382 $ ( 808 ) $ ( 4,611 ) $ 1,482 As of September 30, 2023, $ 3.2 million o f net losses related to our interest rate swaps and commodity derivatives are expected to be reclassified from AOCI into earnings within the next 12 months. As market prices fluctuate, estimated and actual realized gains or losses will change during future periods. Derivatives Not Designated as Hedge Instruments The following table summarizes the impacts of derivative instruments not designated as hedge instruments on our Consolidated Statements of Income for the three and nine months ended September 30, 2023 and 2022. Note that this presentation does not reflect the expected gains or losses arising from the underlying physical transactions; therefore, it is not indicative of the economic profit or loss we realized when the underlying physical and financial transactions were settled. Three Months Ended September 30, 2023 2022 Derivatives Not Designated as Hedging Instruments Location of Gain/(Loss) on Derivatives Recognized in Income Amount of Gain/(Loss) on Derivatives Recognized in Income (in thousands) Commodity derivatives Fuel, purchased power and cost of natural gas sold $ 255 $ 1,617 $ 255 $ 1,617 Nine Months Ended September 30, 2023 2022 Derivatives Not Designated as Hedging Instruments Location of Gain/(Loss) on Derivatives Recognized in Income Amount of Gain/(Loss) on Derivatives Recognized in Income (in thousands) Commodity derivatives Fuel, purchased power and cost of natural gas sold $ ( 2,445 ) $ 2,779 $ ( 2,445 ) $ 2,779 |
Fair Value Measurements (Tables
Fair Value Measurements (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Fair Value Disclosures [Abstract] | |
Schedule of Fair Value Hierarchy, Measured on Recurring Basis | The following tables set forth, by level within the fair value hierarchy, our gross assets and gross liabilities and related offsetting of cash collateral and contractual netting rights as permitted by GAAP that were accounted for at fair value on a recurring basis for derivative instruments. As of September 30, 2023 Level 1 Level 2 Level 3 Cash Collateral and Counterparty Netting (a) Total (in thousands) Assets: Commodity derivatives - Gas Utilities $ - $ 5,183 $ - $ ( 5,057 ) $ 126 Total $ - $ 5,183 $ - $ ( 5,057 ) $ 126 Liabilities: Commodity derivatives - Gas Utilities $ - $ 4,809 $ - $ ( 2,598 ) $ 2,211 Total $ - $ 4,809 $ - $ ( 2,598 ) $ 2,211 (a) As of September 30, 2023, $ 5.1 million of our commodity derivative assets and $ 2.6 million of our commodity derivative liabilities, as well as related gross collateral amounts, were subject to master netting agreements . As of December 31, 2022 Level 1 Level 2 Level 3 Cash Collateral and Counterparty Netting (a) Total (in thousands) Assets: Commodity derivatives - Gas Utilities $ - $ 5,407 $ - $ ( 4,290 ) $ 1,117 Total $ - $ 5,407 $ - $ ( 4,290 ) $ 1,117 Liabilities: Commodity derivatives - Gas Utilities $ - $ 11,455 $ - $ ( 4,837 ) $ 6,618 Total $ - $ 11,455 $ - $ ( 4,837 ) $ 6,618 (a) As of December 31, 2022 , $ 4.3 million of our commodity derivative assets and $ 4.8 million of our commodity derivative liabilities, as well as related gross collateral amounts, were subject to master netting agreements. |
Fair Value, by Balance Sheet Grouping | The following table presents the carrying amounts and fair values of financial instruments not recorded at fair value on the Consolidated Balance Sheets (in thousands) as of: September 30, 2023 December 31, 2022 Carrying Amount Fair Value Carrying Amount Fair Value Long-term debt, including current maturities (a) $ 4,924,510 $ 4,481,989 $ 4,132,340 $ 3,760,848 (a) Long-term debt is valued based on observable inputs available either directly or indirectly for similar liabilities in active markets and therefore is classified in Level 2 in the fair value hierarchy. Carrying amount of long-term debt is net of deferred financing costs. |
Other Comprehensive Income (Tab
Other Comprehensive Income (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Statement of Comprehensive Income [Abstract] | |
Reclassification out of Accumulated Other Comprehensive Income | The following table details reclassifications out of AOCI and into Net income. The amounts in parentheses below indicate decreases to Net income in the Consolidated Statements of Income for the period, net of tax (in thousands): Amount Reclassified from AOCI Amount Reclassified from AOCI Location on the Consolidated Statements of Income Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Gains and (losses) on cash flow hedges: Interest rate swaps Interest expense $ ( 712 ) $ ( 712 ) $ ( 2,138 ) $ ( 2,138 ) Commodity contracts Fuel, purchased power and cost of natural gas sold ( 34 ) 43 ( 2,473 ) 3,620 $ ( 746 ) $ ( 669 ) $ ( 4,611 ) $ 1,482 Income tax Income tax expense 170 124 1,081 ( 332 ) Total reclassification adjustments related to cash flow hedges, net of tax $ ( 576 ) $ ( 545 ) $ ( 3,530 ) $ 1,150 Amortization of components of defined benefit plans: Prior service cost Operations and maintenance $ - $ 24 $ - $ 70 Actuarial gain (loss) Operations and maintenance ( 43 ) ( 188 ) ( 129 ) ( 563 ) $ ( 43 ) $ ( 164 ) $ ( 129 ) $ ( 493 ) Income tax Income tax expense 19 58 62 157 Total reclassification adjustments related to defined benefit plans, net of tax $ ( 24 ) $ ( 106 ) $ ( 67 ) $ ( 336 ) Total reclassifications $ ( 600 ) $ ( 651 ) $ ( 3,597 ) $ 814 |
Schedule of Accumulated Other Comprehensive Income (Loss) | Balances by classification included within AOCI, net of tax on the accompanying Consolidated Balance Sheets were as follows (in thousands): Derivatives Designated as Cash Flow Hedges Interest Rate Swaps Commodity Derivatives Employee Benefit Plans Total As of December 31, 2022 $ ( 8,255 ) $ ( 1,200 ) $ ( 6,112 ) $ ( 15,567 ) Other comprehensive income (loss) before reclassifications - ( 937 ) - ( 937 ) Amounts reclassified from AOCI 1,649 1,881 67 3,597 As of September 30, 2023 $ ( 6,606 ) $ ( 256 ) $ ( 6,045 ) $ ( 12,907 ) Derivatives Designated as Cash Flow Hedges Interest Rate Swaps Commodity Derivatives Employee Benefit Plans Total As of December 31, 2021 $ ( 10,384 ) $ 1,476 $ ( 11,176 ) $ ( 20,084 ) Other comprehensive income (loss) before reclassifications - 509 - 509 Amounts reclassified from AOCI 1,589 ( 2,739 ) 336 ( 814 ) As of September 30, 2022 $ ( 8,795 ) $ ( 754 ) $ ( 10,840 ) $ ( 20,389 ) |
Employee Benefit Plans (Tables)
Employee Benefit Plans (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Defined Benefit Plan Disclosure [Line Items] | |
Components of Net Periodic Benefit Cost | The components of net periodic expense were as follows (in thousands): Defined Benefit Pension Plan Supplemental Non-qualified Defined Benefit Plans Non-pension Defined Benefit Postretirement Healthcare Plan Three Months Ended September 30, 2023 2022 2023 2022 2023 2022 Service cost $ 614 $ 982 $ ( 77 ) $ ( 271 ) $ 381 $ 492 Interest cost 4,381 2,705 369 209 594 321 Expected return on plan assets ( 4,672 ) ( 4,631 ) - - ( 55 ) ( 31 ) Net amortization of prior service costs ( 17 ) ( 17 ) - - 10 ( 72 ) Recognized net actuarial loss 498 1,522 8 69 ( 3 ) 16 Net periodic expense (benefit) $ 804 $ 561 $ 300 $ 7 $ 927 $ 726 Defined Benefit Pension Plan Supplemental Non-qualified Defined Benefit Plans Non-pension Defined Benefit Postretirement Healthcare Plan Nine Months Ended September 30, 2023 2022 2023 2022 2023 2022 Service cost $ 1,842 $ 2,946 $ 1,607 $ ( 2,018 ) $ 1,143 $ 1,476 Interest cost 13,142 8,114 1,107 626 1,783 963 Expected return on plan assets ( 14,016 ) ( 13,892 ) - - ( 167 ) ( 93 ) Net amortization of prior service costs ( 51 ) ( 51 ) - - 30 ( 217 ) Recognized net actuarial loss (gain) 1,494 4,568 24 207 ( 9 ) 48 Net periodic expense (benefit) $ 2,411 $ 1,685 $ 2,738 $ ( 1,185 ) $ 2,780 $ 2,177 |
Schedule of Employer Contribution to Employee Benefit Plans | Contributions made in the first nine months of 2023 and anticipated contributions for 2023 and 2024 are as follows (in thousands): Contributions Made Additional Contributions Contributions Nine Months Ended September 30, 2023 Anticipated for Anticipated for Defined Benefit Pension Plan $ - $ - $ - Non-pension Defined Benefit Postretirement Healthcare Plan $ 3,690 $ 1,230 $ 4,808 Supplemental Non-qualified Defined Benefit and Defined Contribution Plans $ 1,673 $ 558 $ 2,417 |
Business Segment Information (T
Business Segment Information (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Segment Reporting Information, Additional Information [Abstract] | |
Schedule of Segment Reporting Information, by Segment | Segment information was as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Revenues: Electric Utilities External Customers $ 234,490 $ 255,741 $ 640,595 $ 660,800 Inter-segment 2,839 2,928 8,516 8,786 Total Electric Utilities Revenue 237,329 258,669 649,111 669,586 Gas Utilities External Customers 172,636 206,871 1,098,973 1,099,577 Inter-segment 1,649 1,417 4,948 4,272 Total Gas Utilities Revenue 174,285 208,288 1,103,921 1,103,849 Inter-segment eliminations ( 4,488 ) ( 4,345 ) ( 13,464 ) ( 13,058 ) Total Revenues $ 407,126 $ 462,612 $ 1,739,568 $ 1,760,377 Operating income (loss): Electric Utilities $ 83,016 $ 69,483 $ 190,695 $ 165,455 Gas Utilities 15,400 10,583 147,750 162,318 Corporate and Other ( 645 ) ( 587 ) ( 2,275 ) ( 2,552 ) Total Operating Income $ 97,771 $ 79,479 $ 336,170 $ 325,221 Total assets (net of inter-segment eliminations) as of: September 30, 2023 December 31, 2022 Electric Utilities $ 3,938,835 $ 3,929,721 Gas Utilities 5,301,383 5,578,282 Corporate and Other 692,710 110,227 Total assets $ 9,932,928 $ 9,618,230 |
Selected Balance Sheet Inform_2
Selected Balance Sheet Information (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Selected Balance Sheet Information [Abstract] | |
Account Receivable Schedule | Following is a summary of Accounts receivable, net included in the accompanying Consolidated Balance Sheets (in thousands) as of: September 30, 2023 December 31, 2022 Billed Accounts Receivable $ 164,171 $ 267,571 Unbilled Revenue 66,478 243,574 Less: Allowance for Credit Losses ( 1,819 ) ( 2,953 ) Account Receivable, net $ 228,830 $ 508,192 |
Financing Receivable, Current, Allowance for Credit Loss | Changes to allowance for credit losses for the nine months ended September 30, 2023 and 2022, respectively, were as follows (in thousands): Balance at Beginning of Year Additions Charged to Costs and Expenses Recoveries and Other Additions Write-offs and Other Deductions Balance at September 30, 2023 $ 2,953 $ 7,195 $ 2,445 $ ( 10,774 ) $ 1,819 2022 $ 2,113 $ 6,473 $ 2,117 $ ( 8,768 ) $ 1,935 |
Materials, Supplies and Fuel | The following amounts by major classification are included in Materials, supplies and fuel on the accompanying Consolidated Balance Sheets (in thousands) as of: September 30, 2023 December 31, 2022 Materials and supplies $ 104,945 $ 99,734 Fuel - Electric Utilities 7,674 3,115 Natural gas in storage 55,460 104,572 Total materials, supplies and fuel $ 168,079 $ 207,421 |
Schedule of Accrued Liabilities | The following amounts by major classification are included in Accrued liabilities on the accompanying Consolidated Balance Sheets (in thousands) as of: September 30, 2023 December 31, 2022 Accrued employee compensation, benefits and withholdings $ 65,620 $ 62,890 Accrued property taxes 46,309 52,430 Customer deposits and prepayments 57,100 47,655 Accrued interest 49,314 33,798 Other (none of which is individually significant) 39,115 46,684 Total accrued liabilities $ 257,458 $ 243,457 |
Regulatory Matters_ Regulatory
Regulatory Matters: Regulatory Matters (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Regulatory assets | $ 504,859 | $ 652,981 |
Regulatory assets, current | (191,746) | (260,312) |
Regulatory assets, non-current | 313,113 | 392,669 |
Regulatory liabilities | 562,957 | 518,573 |
Regulatory liabilities, current | (93,988) | (46,013) |
Regulatory liabilities, non-current | 468,969 | 472,560 |
Deferred energy and gas costs | ||
Regulatory liabilities | 91,273 | 41,722 |
Employee benefit plan costs and related deferred taxes | ||
Regulatory liabilities | 33,006 | 34,258 |
Cost of removal | ||
Regulatory liabilities | 179,208 | 175,614 |
Excess deferred income taxes | ||
Regulatory liabilities | 250,390 | 254,833 |
Other regulatory liabilities | ||
Regulatory liabilities | 9,080 | 12,146 |
Storm Costs | ||
Regulatory assets | 225,052 | 347,980 |
Deferred energy and gas costs | ||
Regulatory assets | 59,129 | 72,580 |
Deferred gas cost adjustments | ||
Regulatory assets | 8,048 | 12,147 |
Gas price derivatives | ||
Regulatory assets | 3,849 | 8,793 |
Deferred taxes on AFUDC | ||
Regulatory assets | 7,180 | 7,333 |
Employee benefit plans and related deferred taxes | ||
Regulatory assets | 87,423 | 89,259 |
Environmental | ||
Regulatory assets | 2,868 | 1,343 |
Loss on reacquired debt | ||
Regulatory assets | 17,865 | 19,213 |
Deferred taxes on flow through accounting | ||
Regulatory assets | 69,259 | 69,529 |
Decommissioning costs | ||
Regulatory assets | 2,407 | 3,472 |
Other regulatory assets | ||
Regulatory assets | $ 21,779 | $ 21,332 |
Regulatory Matters_ Gas Utiliti
Regulatory Matters: Gas Utilities Regulatory Activity (Details) $ in Millions | Oct. 13, 2023 USD ($) mi | Jul. 12, 2023 USD ($) | May 09, 2023 USD ($) mi | Jan. 26, 2023 USD ($) | Jun. 01, 2022 mi |
Colorado Public Utilities Commission (CPUC) | Black Hills Energy - Colorado Gas | Rate Review Filed with the Regulatory Agency | |||||
Public Utilities, General Disclosures [Line Items] | |||||
Public Utilities - Length of Natural Gas Pipeline to Receive Infrastructure Investments | mi | 10,000 | ||||
Public Utilities, Requested Rate Increase (Decrease), Amount | $ 27 | ||||
Public utilities, requested equity capital structure, percentage | 51% | ||||
Public utilities, requested debt capital structure, percentage | 49% | ||||
Public Utilities, Requested Return on Equity, Percentage | 10.49% | ||||
Colorado Public Utilities Commission (CPUC) | Black Hills Energy - Rocky Mountain Natural Gas | Settlement Reached with the Regulatory Agency | |||||
Public Utilities, General Disclosures [Line Items] | |||||
Weighted average cost of capital | 6.93% | ||||
Public Utilities Amount of System Safety and Integrity Rider Moved to Base Rates and Termination of the System Safety and Integrity Rider | $ 8.3 | ||||
Public Utilities, Approved Rate Increase (Decrease), Amount | $ 8.2 | ||||
Colorado Public Utilities Commission (CPUC) | Black Hills Energy - Rocky Mountain Natural Gas | Settlement Reached with the Regulatory Agency | Minimum | |||||
Public Utilities, General Disclosures [Line Items] | |||||
Public Utilities, Approved Equity Capital Structure, Percentage | 50% | ||||
Public Utilities, Approved Debt Capital Structure, Percentage | 50% | ||||
Public Utilities, Approved Return on Equity, Percentage | 9.50% | ||||
Colorado Public Utilities Commission (CPUC) | Black Hills Energy - Rocky Mountain Natural Gas | Settlement Reached with the Regulatory Agency | Maximum | |||||
Public Utilities, General Disclosures [Line Items] | |||||
Public Utilities, Approved Equity Capital Structure, Percentage | 52% | ||||
Public Utilities, Approved Debt Capital Structure, Percentage | 48% | ||||
Public Utilities, Approved Return on Equity, Percentage | 9.70% | ||||
Wyoming Public Service Commission | Wyoming Electric | Settlement Reached with the Regulatory Agency | |||||
Public Utilities, General Disclosures [Line Items] | |||||
Public Utilities - Length of Electric Distribution Lines to Receive Infrastructure Investments | mi | 1,330 | ||||
Public Utilities - Length of Electric Transmission Lines to Receive Infrastructure Investments | mi | 59 | ||||
Public Utilities, Approved Equity Capital Structure, Percentage | 52% | ||||
Public Utilities, Approved Debt Capital Structure, Percentage | 48% | ||||
Public Utilities, Approved Return on Equity, Percentage | 9.75% | ||||
Public Utilities, Approved Rate Increase (Decrease), Amount | $ 8.7 | ||||
Subsequent Event | Wyoming Public Service Commission | Black Hills Energy - Wyoming Gas | Settlement Agreement Filed with Regulatory Agency | |||||
Public Utilities, General Disclosures [Line Items] | |||||
Public Utilities - Length of Natural Gas Pipeline to Receive Infrastructure Investments | mi | 6,400 | ||||
Public utilities, requested equity capital structure, percentage | 51% | ||||
Public utilities, requested debt capital structure, percentage | 49% | ||||
Public Utilities, Requested Return on Equity, Percentage | 9.85% | ||||
Public Utilities, Approved Rate Increase (Decrease), Amount | $ 13.9 | ||||
Extension period as per settlement agreement | 4 years |
Commitments, Contingencies and
Commitments, Contingencies and Guarantees (Details) a in Millions, $ in Millions | 3 Months Ended | |
Apr. 13, 2022 USD ($) a | Sep. 30, 2023 USD ($) | |
Loss Contingencies [Line Items] | ||
Gain on Business Interruption Insurance Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration] | Revenues | |
Black Hills Wyoming and Wyodak Resources Development Corporation | ||
Loss Contingencies [Line Items] | ||
Business interruption insurance recovered | $ 5 | |
GT Resources, LLC | Pending Litigation | ||
Loss Contingencies [Line Items] | ||
Loss Contingency, Damages Awarded, Value | $ 41 | |
Loss Contingency, Concession Award, Area | a | 2.3 |
Revenue_ Disaggregation of Reve
Revenue: Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Revenue from contracts with customers | $ 400,162 | $ 460,868 | $ 1,717,353 | $ 1,752,961 |
Revenue | 407,126 | 462,612 | 1,739,568 | 1,760,377 |
Retail - Electric , Natural Gas and Coal | ||||
Revenue from contracts with customers | 311,832 | 368,692 | 1,453,433 | 1,500,617 |
Transportation | ||||
Revenue from contracts with customers | 42,540 | 40,907 | 131,066 | 124,898 |
Wholesale | ||||
Revenue from contracts with customers | 9,441 | 13,667 | 24,578 | 32,370 |
Market - off-system sales | ||||
Revenue from contracts with customers | 13,024 | 16,956 | 37,836 | 33,192 |
Transmission/Other | ||||
Revenue from contracts with customers | 23,325 | 20,646 | 70,440 | 61,884 |
Other revenues | ||||
Revenue | 6,964 | 1,744 | 22,215 | 7,416 |
Services transferred at a point in time | ||||
Revenue from contracts with customers | 7,843 | 7,928 | 24,344 | 21,712 |
Services transferred over time | ||||
Revenue from contracts with customers | 392,319 | 452,940 | 1,693,009 | 1,731,249 |
Inter-segment Revenues | ||||
Revenue from contracts with customers | (4,488) | (4,247) | (13,464) | (12,743) |
Revenue | (4,488) | (4,345) | (13,464) | (13,058) |
Inter-segment Revenues | Retail - Electric , Natural Gas and Coal | ||||
Revenue from contracts with customers | 0 | 0 | 0 | 0 |
Inter-segment Revenues | Transportation | ||||
Revenue from contracts with customers | (114) | (99) | (344) | (298) |
Inter-segment Revenues | Wholesale | ||||
Revenue from contracts with customers | 0 | 0 | 0 | 0 |
Inter-segment Revenues | Market - off-system sales | ||||
Revenue from contracts with customers | 0 | 0 | 0 | 0 |
Inter-segment Revenues | Transmission/Other | ||||
Revenue from contracts with customers | (4,374) | (4,148) | (13,120) | (12,445) |
Inter-segment Revenues | Other revenues | ||||
Revenue | 0 | (98) | 0 | (315) |
Inter-segment Revenues | Services transferred at a point in time | ||||
Revenue from contracts with customers | 0 | 0 | 0 | 0 |
Inter-segment Revenues | Services transferred over time | ||||
Revenue from contracts with customers | (4,488) | (4,247) | (13,464) | (12,743) |
Operating Segments | Electric Utilities | ||||
Revenue from contracts with customers | 231,561 | 257,845 | 639,096 | 664,822 |
Revenue | 237,329 | 258,669 | 649,111 | 669,586 |
Operating Segments | Electric Utilities | Retail - Electric , Natural Gas and Coal | ||||
Revenue from contracts with customers | 191,029 | 211,489 | 522,304 | 553,327 |
Operating Segments | Electric Utilities | Transportation | ||||
Revenue from contracts with customers | 0 | 0 | 0 | 0 |
Operating Segments | Electric Utilities | Wholesale | ||||
Revenue from contracts with customers | 9,441 | 13,667 | 24,578 | 32,370 |
Operating Segments | Electric Utilities | Market - off-system sales | ||||
Revenue from contracts with customers | 12,999 | 16,770 | 37,487 | 32,590 |
Operating Segments | Electric Utilities | Transmission/Other | ||||
Revenue from contracts with customers | 18,092 | 15,919 | 54,727 | 46,535 |
Operating Segments | Electric Utilities | Other revenues | ||||
Revenue | 5,768 | 824 | 10,015 | 4,764 |
Operating Segments | Electric Utilities | Services transferred at a point in time | ||||
Revenue from contracts with customers | 7,843 | 7,928 | 24,344 | 21,712 |
Operating Segments | Electric Utilities | Services transferred over time | ||||
Revenue from contracts with customers | 223,718 | 249,917 | 614,752 | 643,110 |
Operating Segments | Gas Utilities | ||||
Revenue from contracts with customers | 173,089 | 207,270 | 1,091,721 | 1,100,882 |
Revenue | 174,285 | 208,288 | 1,103,921 | 1,103,849 |
Operating Segments | Gas Utilities | Retail - Electric , Natural Gas and Coal | ||||
Revenue from contracts with customers | 120,803 | 157,203 | 931,129 | 947,290 |
Operating Segments | Gas Utilities | Transportation | ||||
Revenue from contracts with customers | 42,654 | 41,006 | 131,410 | 125,196 |
Operating Segments | Gas Utilities | Wholesale | ||||
Revenue from contracts with customers | 0 | 0 | 0 | 0 |
Operating Segments | Gas Utilities | Market - off-system sales | ||||
Revenue from contracts with customers | 25 | 186 | 349 | 602 |
Operating Segments | Gas Utilities | Transmission/Other | ||||
Revenue from contracts with customers | 9,607 | 8,875 | 28,833 | 27,794 |
Operating Segments | Gas Utilities | Other revenues | ||||
Revenue | 1,196 | 1,018 | 12,200 | 2,967 |
Operating Segments | Gas Utilities | Services transferred at a point in time | ||||
Revenue from contracts with customers | 0 | 0 | 0 | 0 |
Operating Segments | Gas Utilities | Services transferred over time | ||||
Revenue from contracts with customers | $ 173,089 | $ 207,270 | $ 1,091,721 | $ 1,100,882 |
Financing - Schedule of Short-t
Financing - Schedule of Short-term Debt and Narrative (Details) - USD ($) $ in Thousands | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | |
Short-Term Debt [Line Items] | |||
Amount outstanding | $ 0 | $ 535,600 | |
Revolving Credit Facility | Commercial Paper | |||
Short-Term Debt [Line Items] | |||
Amount outstanding | 0 | 535,600 | |
Letters of Credit | 3,707 | 24,626 | |
Available capacity | 746,293 | $ 189,774 | |
Weighted average interest rates | 4.88% | ||
Maximum amount outstanding (based on daily outstanding balances) | 548,700 | $ 508,200 | |
Average amount outstanding (based on daily outstanding balances) | $ 109,209 | $ 347,121 | |
Weighted average interest rates | 4.91% | 1.41% |
Financing_ Long-Term Debt (Addi
Financing: Long-Term Debt (Additional Information) (Details) - USD ($) $ in Millions | Nov. 30, 2023 | Sep. 15, 2023 | Mar. 07, 2023 |
Senior Unsecured Notes Due 2028 | |||
Debt Instrument [Line Items] | |||
Stated interest rate (percent) | 5.95% | ||
Debt Instrument, Term | 5 years | ||
Less unamortized deferred financing costs | $ 4.2 | ||
Senior Unsecured Notes Due 2028 | Corporate, Non-Segment | |||
Debt Instrument [Line Items] | |||
Proceeds from Issuance of Debt | $ 350 | ||
Senior Unsecured Notes Due 2034 | |||
Debt Instrument [Line Items] | |||
Stated interest rate (percent) | 6.15% | ||
Less unamortized deferred financing costs | $ 7.2 | ||
Senior Unsecured Notes Due 2034 | Corporate, Non-Segment | |||
Debt Instrument [Line Items] | |||
Proceeds from Issuance of Debt | $ 450 | ||
Senior Unsecured Notes Due 2023 | Forecast | |||
Debt Instrument [Line Items] | |||
Repayment of long term debt | $ 525 |
Financing_ Debt Covenants (Addi
Financing: Debt Covenants (Additional Information) (Details) | Sep. 30, 2023 |
Line of Credit Facility [Line Items] | |
Consolidated indebtedness to capitalization ratio | 0.61 |
Maximum | |
Line of Credit Facility [Line Items] | |
Consolidated indebtedness to capitalization ratio | 0.65 |
Wyoming Electric | |
Line of Credit Facility [Line Items] | |
Consolidated indebtedness to capitalization ratio | 0.53 |
Wyoming Electric | Maximum | |
Line of Credit Facility [Line Items] | |
Consolidated indebtedness to capitalization ratio | 0.6 |
Financing_ At-the-Market Equity
Financing: At-the-Market Equity Offering Program (Additional Information) (Details) - USD ($) $ in Millions | Jun. 16, 2023 | Aug. 04, 2020 |
Line of Credit Facility [Line Items] | ||
At the market equity offering program authorized aggregate value | $ 400 | $ 400 |
Financing_ At-the-Market Equi_2
Financing: At-the-Market Equity Offering Program (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Number of shares issued | 930,844 | 1,812,624 | 272,592 | |
August 4, 2020 ATM Program | ||||
Number of shares issued | 775,225 | 272,592 | ||
June 16, 2023 ATM Program | ||||
Number of shares issued | 930,844 | 1,037,399 | ||
Common Stock | ||||
Proceeds, (net of issuance costs) | $ 52.8 | $ 107.7 | $ 20.2 | |
Average price per share | $ 57.33 | $ 60.02 | $ 74.84 | |
Payments of Stock Issuance Costs | $ (0.5) | $ 0 | $ (1.1) | $ (0.2) |
Common Stock | August 4, 2020 ATM Program | ||||
Proceeds, (net of issuance costs) | 48.5 | 20.2 | ||
Payments of Stock Issuance Costs | 0 | 0 | (0.5) | (0.2) |
Common Stock | June 16, 2023 ATM Program | ||||
Proceeds, (net of issuance costs) | 52.8 | 59.2 | ||
Payments of Stock Issuance Costs | $ (0.5) | $ 0 | $ (0.6) | $ 0 |
Earnings Per Share - Earnings P
Earnings Per Share - Earnings Per Share Reconciliation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Earnings Per Share [Abstract] | ||||
Net Income (Loss) | $ 45,383 | $ 34,973 | $ 182,520 | $ 185,914 |
Weighted average shares - Basic (in shares) | 67,315 | 64,876 | 66,652 | 64,722 |
Dilutive effect of: | ||||
Equity compensation (in shares) | 74 | 185 | 73 | 188 |
Weighted average shares - diluted (in shares) | 67,389 | 65,061 | 66,725 | 64,910 |
Earnings per share, Basic (usd per share) | $ 0.67 | $ 0.54 | $ 2.74 | $ 2.87 |
Earnings per share, Diluted (usd per share) | $ 0.67 | $ 0.54 | $ 2.74 | $ 2.86 |
Earnings Per Share - Schedule o
Earnings Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares shares in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Antidilutive Securities Excluded from Computation of Earnings Per Share | ||||
Anti-dilutive shares (in shares) | 74 | 0 | 48 | 0 |
Share-Based Payment Arrangement [Member] | ||||
Antidilutive Securities Excluded from Computation of Earnings Per Share | ||||
Anti-dilutive shares (in shares) | 74 | 0 | 48 | 0 |
Restricted Stock | ||||
Antidilutive Securities Excluded from Computation of Earnings Per Share | ||||
Anti-dilutive shares (in shares) | 0 | 0 | 0 | 0 |
Risk Management and Derivativ_3
Risk Management and Derivatives: Utilities (Details) $ in Millions | Sep. 30, 2023 USD ($) MMBTU | Dec. 31, 2022 MMBTU | |
Derivative [Line Items] | |||
Credit Risk Derivative Liabilities, at Fair Value | $ | $ 0.6 | ||
Natural Gas, Distribution | Cash Flow Hedging | |||
Derivative [Line Items] | |||
Derivative, Nonmonetary Notional Amount | 2,979,300 | ||
Natural Gas, Distribution | Natural gas futures purchased | |||
Derivative [Line Items] | |||
Derivative, Remaining Maturity | [1] | 6 months | 3 months |
Natural Gas, Distribution | Natural gas futures purchased | Long | |||
Derivative [Line Items] | |||
Derivative, Nonmonetary Notional Amount | 1,730,000 | 630,000 | |
Natural Gas, Distribution | Natural gas options purchased, net | |||
Derivative [Line Items] | |||
Derivative, Remaining Maturity | [1] | 6 months | 3 months |
Natural Gas, Distribution | Natural gas options purchased, net | Long | |||
Derivative [Line Items] | |||
Derivative, Nonmonetary Notional Amount | 7,780,000 | 1,790,000 | |
Natural Gas, Distribution | Natural gas basis swaps purchased | |||
Derivative [Line Items] | |||
Derivative, Remaining Maturity | [1] | 6 months | 3 months |
Natural Gas, Distribution | Natural gas basis swaps purchased | Long | |||
Derivative [Line Items] | |||
Derivative, Nonmonetary Notional Amount | 1,730,000 | 900,000 | |
Natural Gas, Distribution | Natural gas over-the-counter swaps, net | |||
Derivative [Line Items] | |||
Derivative, Remaining Maturity | [1],[2] | 24 months | 24 months |
Natural Gas, Distribution | Natural gas over-the-counter swaps, net | Long | |||
Derivative [Line Items] | |||
Derivative, Nonmonetary Notional Amount | [2] | 5,610,000 | 4,460,000 |
Natural Gas, Distribution | Natural gas physical contracts, net | |||
Derivative [Line Items] | |||
Derivative, Remaining Maturity | [1],[3] | 7 months | 12 months |
Natural Gas, Distribution | Natural gas physical contracts, net | Long | |||
Derivative [Line Items] | |||
Derivative, Nonmonetary Notional Amount | [3] | 21,323,455 | 17,864,412 |
[1] Term reflects the maximum forward period hedged. As of September 30, 2023 , 2,979,300 MMBtus of natural gas over-the-counter swaps purchases were designated as cash flow hedges. Volumes exclude derivative contracts that qualify for the normal purchases and normal sales exception permitted by GAAP. |
Risk Management and Derivativ_4
Risk Management and Derivatives: Derivatives by Balance Sheet Classification (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Designated as Hedging Instrument | ||
Derivatives, Fair Value [Line Items] | ||
Derivative Asset, Fair Value, Amount Not Offset Against Collateral | $ 105 | $ (1,387) |
Commodity Contract | Not Designated as Hedging Instrument | ||
Derivatives, Fair Value [Line Items] | ||
Derivative Asset, Fair Value, Amount Not Offset Against Collateral | (2,190) | (4,114) |
Derivative assets, current | Commodity Contract | Designated as Hedging Instrument | ||
Derivatives, Fair Value [Line Items] | ||
Derivative Asset, Fair Value, Gross Asset | 0 | 118 |
Derivative assets, current | Commodity Contract | Not Designated as Hedging Instrument | ||
Derivatives, Fair Value [Line Items] | ||
Derivative Asset, Fair Value, Gross Asset | 126 | 464 |
Other assets, non-current | Commodity Contract | Designated as Hedging Instrument | ||
Derivatives, Fair Value [Line Items] | ||
Derivative Asset, Fair Value, Gross Asset | (18) | 198 |
Derivative Liability, Fair Value, Gross Liability | (20) | 0 |
Other assets, non-current | Commodity Contract | Not Designated as Hedging Instrument | ||
Derivatives, Fair Value [Line Items] | ||
Derivative Asset, Fair Value, Gross Asset | 18 | 337 |
Derivative liabilities, current | Commodity Contract | Designated as Hedging Instrument | ||
Derivatives, Fair Value [Line Items] | ||
Derivative Liability, Fair Value, Gross Liability | 143 | (1,703) |
Derivative liabilities, current | Commodity Contract | Not Designated as Hedging Instrument | ||
Derivatives, Fair Value [Line Items] | ||
Derivative Liability, Fair Value, Gross Liability | (2,336) | (4,897) |
Other deferred credits and other liabilities | Commodity Contract | Not Designated as Hedging Instrument | ||
Derivatives, Fair Value [Line Items] | ||
Derivative Liability, Fair Value, Gross Liability | $ 2 | $ (18) |
Risk Management and Derivativ_5
Risk Management and Derivatives: Cash Flow Hedges (Details) - Cash Flow Hedging - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Interest rate swaps | ||||
Derivative [Line Items] | ||||
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months | $ 3,200 | |||
Designated as Hedging Instrument | ||||
Derivative [Line Items] | ||||
Unrealized Gain (Loss) on Cash Flow Hedging Instruments | $ 493 | $ 3,004 | 3,382 | $ (808) |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | $ (746) | $ (669) | $ (4,611) | $ 1,482 |
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] | Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest |
Designated as Hedging Instrument | Interest rate swaps | ||||
Derivative [Line Items] | ||||
Unrealized Gain (Loss) on Cash Flow Hedging Instruments | $ 712 | $ 712 | $ 2,138 | $ 2,138 |
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion | $ (712) | $ (712) | $ (2,138) | $ (2,138) |
Derivative Instrument, Loss Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] | Interest Costs Incurred | Interest Costs Incurred | Interest Costs Incurred | Interest Costs Incurred |
Designated as Hedging Instrument | Commodity Contract | ||||
Derivative [Line Items] | ||||
Unrealized Gain (Loss) on Cash Flow Hedging Instruments | $ (219) | $ 2,292 | $ 1,244 | $ (2,946) |
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion | $ (34) | $ (2,473) | ||
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion | $ 43 | $ 3,620 | ||
Derivative Instrument, Gain Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] | Fuel, Purchased Power and Cost of Gas Sold | Fuel, Purchased Power and Cost of Gas Sold | Fuel, Purchased Power and Cost of Gas Sold | Fuel, Purchased Power and Cost of Gas Sold |
Risk Management and Derivativ_6
Risk Management and Derivatives: Derivatives Not Designated as Hedge Instruments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | |
Derivative [Line Items] | |||||
Regulatory assets | $ 504,859 | $ 504,859 | $ 652,981 | ||
Regulatory liabilities | 562,957 | 562,957 | 518,573 | ||
Gas price derivatives | |||||
Derivative [Line Items] | |||||
Regulatory assets | 3,849 | 3,849 | $ 8,793 | ||
Not Designated as Hedging Instrument | |||||
Derivative [Line Items] | |||||
Derivative, Gain (Loss) on Derivative, Net | $ 255 | $ 1,617 | $ (2,445) | $ 2,779 | |
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Fuel, Purchased Power and Cost of Gas Sold | Fuel, Purchased Power and Cost of Gas Sold | Fuel, Purchased Power and Cost of Gas Sold | Fuel, Purchased Power and Cost of Gas Sold | |
Not Designated as Hedging Instrument | Natural Gas | |||||
Derivative [Line Items] | |||||
Derivative, Loss on Derivative | $ (2,445) | ||||
Derivative, Loss, Statement of Income or Comprehensive Income [Extensible Enumeration] | Fuel, Purchased Power and Cost of Gas Sold | Fuel, Purchased Power and Cost of Gas Sold | Fuel, Purchased Power and Cost of Gas Sold | Fuel, Purchased Power and Cost of Gas Sold | |
Derivative, Gain on Derivative | $ 255 | $ 1,617 | $ 2,779 |
Fair Value Measurements_ Schedu
Fair Value Measurements: Schedule of Fair Values (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Asset, Statement of Financial Position [Extensible Enumeration] | Derivative Asset, Current | Derivative Asset, Current |
Derivative Liability, Statement of Financial Position [Extensible Enumeration] | Derivative Liability, Current | Derivative Liability, Current |
Contract Subject to Master Netting | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Asset, Fair Value, Gross Asset | $ 5,100 | $ 4,300 |
Derivative Liability, Fair Value, Gross Liability | 2,600 | 4,800 |
Fair Value, Measurements, Recurring | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset | (5,057) | (4,290) |
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset | (2,598) | (4,837) |
Fair Value, Measurements, Recurring | Fair Value | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Assets, Total | 126 | 1,117 |
Derivative Liabilities, Total | 2,211 | 6,618 |
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Assets, Total | 0 | 0 |
Derivative Liabilities, Total | 0 | 0 |
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Assets, Total | 5,183 | 5,407 |
Derivative Liabilities, Total | 4,809 | 11,455 |
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Assets, Total | 0 | 0 |
Derivative Liabilities, Total | 0 | 0 |
Fair Value, Measurements, Recurring | Gas Utilities | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset | (5,057) | (4,290) |
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset | 2,598 | (4,837) |
Fair Value, Measurements, Recurring | Gas Utilities | Fair Value | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Assets, Fair Value Disclosure | 126 | 1,117 |
Derivative, Liabilities, Fair Value Disclosure | 2,211 | 6,618 |
Fair Value, Measurements, Recurring | Gas Utilities | Fair Value, Inputs, Level 1 | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Assets, Fair Value Disclosure | 0 | 0 |
Derivative, Liabilities, Fair Value Disclosure | 0 | 0 |
Fair Value, Measurements, Recurring | Gas Utilities | Fair Value, Inputs, Level 2 | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Assets, Fair Value Disclosure | 5,183 | 5,407 |
Derivative, Liabilities, Fair Value Disclosure | 4,809 | 11,455 |
Fair Value, Measurements, Recurring | Gas Utilities | Fair Value, Inputs, Level 3 | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative Assets, Fair Value Disclosure | 0 | 0 |
Derivative, Liabilities, Fair Value Disclosure | $ 0 | $ 0 |
Fair Value Measurements_ Other
Fair Value Measurements: Other Fair Value Measurements (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Carrying Amount | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Long-term Debt | $ 4,924,510 | $ 4,132,340 |
Fair Value | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Long-term Debt | $ 4,481,989 | $ 3,760,848 |
Other Comprehensive Income_ Rec
Other Comprehensive Income: Reclassification Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||||||
Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] | ||||||||
Interest expense | $ 44,477 | $ 40,580 | $ 131,809 | $ 118,454 | ||||
Fuel, purchased power and cost of natural gas sold | 102,241 | 168,535 | 749,753 | 793,632 | ||||
Operations and maintenance | 125,767 | 134,449 | 412,522 | 403,549 | ||||
Income Tax Expense (Benefit) | (7,366) | (2,090) | (15,950) | (15,920) | ||||
Net income | 48,760 | $ 26,544 | $ 117,380 | 37,834 | $ 35,846 | $ 121,024 | 192,684 | 194,704 |
Reclassification out of Accumulated Other Comprehensive Income | ||||||||
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] | ||||||||
Operations and maintenance | 0 | 24 | 0 | 70 | ||||
Net income | (600) | (651) | (3,597) | 814 | ||||
Cash Flow Hedging | Reclassification out of Accumulated Other Comprehensive Income | ||||||||
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] | ||||||||
Income before income taxes | (746) | (669) | (4,611) | 1,482 | ||||
Income Tax Expense (Benefit) | 170 | 124 | 1,081 | (332) | ||||
Net income | (576) | (545) | (3,530) | 1,150 | ||||
Cash Flow Hedging | Reclassification out of Accumulated Other Comprehensive Income | Interest Rate Swap | ||||||||
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] | ||||||||
Interest expense | (712) | (712) | (2,138) | (2,138) | ||||
Cash Flow Hedging | Reclassification out of Accumulated Other Comprehensive Income | Commodity Contract | ||||||||
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] | ||||||||
Fuel, purchased power and cost of natural gas sold | (34) | 43 | (2,473) | 3,620 | ||||
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) | Reclassification out of Accumulated Other Comprehensive Income | ||||||||
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] | ||||||||
Operations and maintenance | (43) | (188) | (129) | (563) | ||||
Accumulated Defined Benefit Plans Adjustment | Reclassification out of Accumulated Other Comprehensive Income | ||||||||
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] | ||||||||
Income before income taxes | (43) | (164) | (129) | (493) | ||||
Income Tax Expense (Benefit) | 19 | 58 | 62 | 157 | ||||
Net income | $ (24) | $ (106) | $ (67) | $ (336) |
Other Comprehensive Income_ Acc
Other Comprehensive Income: Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands | 9 Months Ended | |
Sep. 30, 2023 | Sep. 30, 2022 | |
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start | $ (15,567) | $ (20,084) |
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End | (12,907) | (20,389) |
Accumulated Defined Benefit Plans Adjustment | ||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start | (6,112) | (11,176) |
Other comprehensive income (loss), before reclassifications | 0 | 0 |
Amounts reclassified from AOCI | 67 | 336 |
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End | (6,045) | (10,840) |
Accumulated Other Comprehensive Income (Loss) | ||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
Other comprehensive income (loss), before reclassifications | (937) | (509) |
Accumulated Other Comprehensive Income (Loss) | Reclassification out of Accumulated Other Comprehensive Income | ||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
Amounts reclassified from AOCI | 3,597 | (814) |
Interest Rate Swap | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | ||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start | (8,255) | (10,384) |
Other comprehensive income (loss), before reclassifications | 0 | 0 |
Amounts reclassified from AOCI | 1,649 | 1,589 |
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End | (6,606) | (8,795) |
Commodity Contract | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | ||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start | (1,200) | 1,476 |
Other comprehensive income (loss), before reclassifications | (937) | 509 |
Amounts reclassified from AOCI | 1,881 | (2,739) |
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End | $ (256) | $ (754) |
Employee Benefit Plans_ Compone
Employee Benefit Plans: Components of Net Periodic Expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Pension Plan | ||||
Defined Benefit Plan Disclosure [Line Items] | ||||
Service Cost | $ 614 | $ 982 | $ 1,842 | $ 2,946 |
Interest cost | 4,381 | 2,705 | 13,142 | 8,114 |
Expected return on assets | (4,672) | (4,631) | (14,016) | (13,892) |
Net amortization of prior service cost | (17) | (17) | (51) | (51) |
Recognized net actuarial loss (gain) | 498 | 1,522 | 1,494 | 4,568 |
Net periodic expense (benefit) | 804 | 561 | 2,411 | 1,685 |
Supplemental Employee Retirement Plan | ||||
Defined Benefit Plan Disclosure [Line Items] | ||||
Service Cost | (77) | (271) | 1,607 | (2,018) |
Interest cost | 369 | 209 | 1,107 | 626 |
Expected return on assets | 0 | 0 | 0 | 0 |
Net amortization of prior service cost | 0 | 0 | 0 | 0 |
Recognized net actuarial loss (gain) | 8 | 69 | 24 | 207 |
Net periodic expense (benefit) | 300 | 7 | 2,738 | (1,185) |
Other Postretirement Benefits Plan | ||||
Defined Benefit Plan Disclosure [Line Items] | ||||
Service Cost | 381 | 492 | 1,143 | 1,476 |
Interest cost | 594 | 321 | 1,783 | 963 |
Expected return on assets | (55) | (31) | (167) | (93) |
Net amortization of prior service cost | 10 | (72) | 30 | (217) |
Recognized net actuarial loss (gain) | (3) | 16 | (9) | 48 |
Net periodic expense (benefit) | $ 927 | $ 726 | $ 2,780 | $ 2,177 |
Employee Benefit Plans_ Plan Co
Employee Benefit Plans: Plan Contributions (Details) $ in Thousands | 9 Months Ended |
Sep. 30, 2023 USD ($) | |
Defined Benefit Pension Plans | |
Defined Benefit Plan Disclosure [Line Items] | |
Estimated Future Employer Contributions in Next Fiscal Year | $ 0 |
Payment for Pension Benefits | 0 |
Estimated Future Employer Contributions in Current Fiscal Year | 0 |
Other Postretirement Benefits Plan | |
Defined Benefit Plan Disclosure [Line Items] | |
Estimated Future Employer Contributions in Next Fiscal Year | 4,808 |
Payment for Pension Benefits | 3,690 |
Estimated Future Employer Contributions in Current Fiscal Year | 1,230 |
Supplemental Non-Qualified Defined Benefit Plans | |
Defined Benefit Plan Disclosure [Line Items] | |
Estimated Future Employer Contributions in Next Fiscal Year | 2,417 |
Payment for Pension Benefits | 1,673 |
Estimated Future Employer Contributions in Current Fiscal Year | $ 558 |
Income Taxes (Details)
Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Income Tax Disclosure [Line Items] | ||||
Income tax (expense) | $ (7,366) | $ (2,090) | $ (15,950) | $ (15,920) |
Effective Tax Rate | 13.10% | 5.20% | 7.60% | 7.60% |
Effective income tax rate reconciliation tax cuts and jobs act of 2017 amount of lower tax benefit | $ 1,400 | |||
Northern Lowa Windpower Assets | ||||
Income Tax Disclosure [Line Items] | ||||
Income tax reconciliation due to sale of assets | 2,300 | |||
Effective income tax rate reconciliation tax cuts and jobs act of 2017 amount of lower tax benefit | 5,800 | |||
Nebraska | ||||
Income Tax Disclosure [Line Items] | ||||
State income tax expense (benefit) | $ 8,200 |
Business Segment Information -
Business Segment Information - Additional Information (Details) | 9 Months Ended |
Sep. 30, 2023 Segment | |
Segment Reporting Information, Additional Information [Abstract] | |
Number of operating segments | 2 |
Business Segment Information_ I
Business Segment Information: Information Relating to Segments Statement of Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Segment Reporting Information | ||||
Revenue | $ 407,126 | $ 462,612 | $ 1,739,568 | $ 1,760,377 |
Operating income (loss) | 97,771 | 79,479 | 336,170 | 325,221 |
Corporate, Non-Segment | ||||
Segment Reporting Information | ||||
Operating income (loss) | (645) | (587) | (2,275) | (2,552) |
Inter-segment Revenues | ||||
Segment Reporting Information | ||||
Revenue | (4,488) | (4,345) | (13,464) | (13,058) |
Operating Segments | ||||
Segment Reporting Information | ||||
Operating income (loss) | 97,771 | 79,479 | 336,170 | 325,221 |
Operating Segments | Electric Utilities | ||||
Segment Reporting Information | ||||
Revenue | 237,329 | 258,669 | 649,111 | 669,586 |
Operating income (loss) | 83,016 | 69,483 | 190,695 | 165,455 |
Operating Segments | Gas Utilities | ||||
Segment Reporting Information | ||||
Revenue | 174,285 | 208,288 | 1,103,921 | 1,103,849 |
Operating income (loss) | 15,400 | 10,583 | 147,750 | 162,318 |
External Customers | Operating Segments | Electric Utilities | ||||
Segment Reporting Information | ||||
Revenue | 234,490 | 255,741 | 640,595 | 660,800 |
External Customers | Operating Segments | Gas Utilities | ||||
Segment Reporting Information | ||||
Revenue | 172,636 | 206,871 | 1,098,973 | 1,099,577 |
Intercompany Customers | Operating Segments | Electric Utilities | ||||
Segment Reporting Information | ||||
Revenue | 2,839 | 2,928 | 8,516 | 8,786 |
Intercompany Customers | Operating Segments | Gas Utilities | ||||
Segment Reporting Information | ||||
Revenue | $ 1,649 | $ 1,417 | $ 4,948 | $ 4,272 |
Business Segment Information_ S
Business Segment Information: Segment Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Segment Reporting, Asset Reconciling Item | ||
Total Assets | $ 9,932,928 | $ 9,618,230 |
Corporate and Other | ||
Segment Reporting, Asset Reconciling Item | ||
Total Assets | 692,710 | 110,227 |
Electric Utilities | Operating Segments | ||
Segment Reporting, Asset Reconciling Item | ||
Total Assets | 3,938,835 | 3,929,721 |
Gas Utilities | Operating Segments | ||
Segment Reporting, Asset Reconciling Item | ||
Total Assets | $ 5,301,383 | $ 5,578,282 |
Selected Balance Sheet Inform_3
Selected Balance Sheet Information: Accounts Receivable (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Dec. 31, 2021 |
Selected Balance Sheet Information [Abstract] | ||||
Billed Accounts Receivable | $ 164,171 | $ 267,571 | ||
Unbilled Revenue | 66,478 | 243,574 | ||
Less: Allowance for Credit Losses | (1,819) | (2,953) | $ (1,935) | $ (2,113) |
Account Receivable, net | $ 228,830 | $ 508,192 |
Selected Balance Sheet Inform_4
Selected Balance Sheet Information: Changes to Allowance for Credit Losses (Details) - USD ($) $ in Thousands | 9 Months Ended | |
Sep. 30, 2023 | Sep. 30, 2022 | |
Selected Balance Sheet Information [Abstract] | ||
Balance at Beginning of Year | $ 2,953 | $ 2,113 |
Additions Charged to Costs and Expenses | 7,195 | 6,473 |
Recoveries and Other Additions | 2,445 | 2,117 |
Write-offs and Other Deductions | (10,774) | (8,768) |
Balance at End of Year | $ 1,819 | $ 1,935 |
Selected Balance Sheet Inform_5
Selected Balance Sheet Information: Materials, Supplies, and Fuel Schedule (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Selected Balance Sheet Information [Abstract] | ||
Materials and supplies | $ 104,945 | $ 99,734 |
Fuel - Electric Utilities | 7,674 | 3,115 |
Natural gas in storage | 55,460 | 104,572 |
Total materials, supplies and fuel | $ 168,079 | $ 207,421 |
Selected Balance Sheet Inform_6
Selected Balance Sheet Information: Accrued Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Selected Balance Sheet Information [Abstract] | ||
Accrued employee compensation, benefits and withholdings | $ 65,620 | $ 62,890 |
Accrued property taxes | 46,309 | 52,430 |
Customer deposits and prepayments | 57,100 | 47,655 |
Accrued interest | 49,314 | 33,798 |
Other (none of which is individually significant) | 39,115 | 46,684 |
Total accrued liabilities | $ 257,458 | $ 243,457 |