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Segment Information | 9 Months Ended
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Sep. 30, 2024
Segment Reporting [Abstract] |
Segment Information | Segment Information The following segment presentation is based on the methodology that management uses for making operating decisions and assessing performance of its various business activities. A reconciliation of the segment presentation to the GAAP financial statements is provided. PNM PNM includes the retail electric utility operations of PNM that are subject to traditional rate regulation by the NMPRC. PNM provides integrated electricity services that include the generation, transmission, and distribution of electricity for retail electric customers in New Mexico. PNM also includes the generation and sale of electricity into the wholesale market, which includes the asset optimization of PNM’s retail capacity, as well as providing transmission services to third parties. FERC has jurisdiction over wholesale power and transmission rates. In 2023, ETBC I, a special purpose entity that is wholly-owned by PNM, was formed for the limited purpose of purchasing, owning, and administering energy transition property, issuing Securitized Bonds, and performing related activities. See Note 6. TNMP TNMP is an electric utility providing services in Texas under the TECA. TNMP’s operations are subject to traditional rate regulation by the PUCT. TNMP provides transmission and distribution services at regulated rates to various REPs that, in turn, provide retail electric service to consumers within TNMP’s service area. TNMP also provides transmission services at regulated rates to other utilities that interconnect with TNMP’s facilities. Corporate and Other The Corporate and Other segment includes TXNM holding company activities, primarily related to corporate level debt and PNMR Services Company. The activities of PNMR Development and the equity method investment in NMRD are also included in Corporate and Other, until the close of the sale of NMRD on February 27, 2024 (Note 16). Eliminations of intercompany transactions are reflected in the Corporate and Other segment. The following tables present summarized financial information for TXNM by segment. PNM and TNMP each operate in only one segment. Therefore, tabular segment information is not presented for PNM and TNMP. TXNM SEGMENT INFORMATION
| PNM |  | TNMP |  |  |  | Corporate and Other |  | TXNM
| (In thousands)
Three Months Ended September 30, 2024 |
Electric operating revenues | $ | 406,519 |  |  | $ | 162,737 |  |  |  |  | $ | — |  |  | $ | 569,256 |
Cost of energy | 101,495 |  |  | 37,414 |  |  |  |  | — |  |  | 138,909 |
Utility margin | 305,024 |  |  | 125,323 |  |  |  |  | — |  |  | 430,347 |
Other operating expenses | 114,591 |  |  | 35,121 |  |  |  |  | (7,845) |  |  | 141,867 |
Depreciation and amortization | 56,424 |  |  | 31,732 |  |  |  |  | 9,244 |  |  | 97,400 |
Operating income (loss) | 134,009 |  |  | 58,470 |  |  |  |  | (1,399) |  |  | 191,080 |
Interest income (expense) | 8,674 |  |  | 130 |  |  |  |  | (135) |  |  | 8,669 |
Other income | 17,296 |  |  | 2,285 |  |  |  |  | 154 |  |  | 19,735 |
Interest charges | (27,852) |  |  | (15,924) |  |  |  |  | (15,888) |  |  | (59,664) |
Segment earnings (loss) before income taxes | 132,127 |  |  | 44,961 |  |  |  |  | (17,268) |  |  | 159,820 |
Income taxes (benefit) | 18,265 |  |  | 9,266 |  |  |  |  | (4,109) |  |  | 23,422 |
Segment earnings (loss) | 113,862 |  |  | 35,695 |  |  |  |  | (13,159) |  |  | 136,398 |
Valencia non-controlling interest | (5,064) |  |  | — |  |  |  |  | — |  |  | (5,064) |
Subsidiary preferred stock dividends | (132) |  |  | — |  |  |  |  | — |  |  | (132) |
Segment earnings (loss) attributable to TXNM | $ | 108,666 |  |  | $ | 35,695 |  |  |  |  | $ | (13,159) |  |  | $ | 131,202 |
| PNM |  | TNMP |  |  |  | Corporate and Other |  | TXNM
| (In thousands)
Nine Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |
Electric operating revenues | $ | 1,048,305 |  |  | $ | 445,930 |  |  |  |  | $ | — |  |  | $ | 1,494,235 |
Cost of energy | 313,679 |  |  | 112,240 |  |  |  |  | — |  |  | 425,919 |
Utility margin | 734,626 |  |  | 333,690 |  |  |  |  | — |  |  | 1,068,316 |
Other operating expenses | 327,635 |  |  | 102,020 |  |  |  |  | (23,692) |  |  | 405,963 |
Depreciation and amortization | 163,941 |  |  | 93,147 |  |  |  |  | 27,912 |  |  | 285,000 |
Operating income (loss) | 243,050 |  |  | 138,523 |  |  |  |  | (4,220) |  |  | 377,353 |
Interest income (expense) | 17,644 |  |  | 426 |  |  |  |  | (351) |  |  | 17,719 |
Other income (deductions) | 41,711 |  |  | 5,866 |  |  |  |  | (14,845) |  |  | 32,732 |
Interest charges | (78,848) |  |  | (43,711) |  |  |  |  | (46,695) |  |  | (169,254) |
Segment earnings (loss) before income taxes | 223,557 |  |  | 101,104 |  |  |  |  | (66,111) |  |  | 258,550 |
Income taxes (benefit) | 29,897 |  |  | 20,901 |  |  |  |  | (30,976) |  |  | 19,822 |
Segment earnings (loss) | 193,660 |  |  | 80,203 |  |  |  |  | (35,135) |  |  | 238,728 |
Valencia non-controlling interest | (11,891) |  |  | — |  |  |  |  | — |  |  | (11,891) |
Subsidiary preferred stock dividends | (396) |  |  | — |  |  |  |  | — |  |  | (396) |
Segment earnings (loss) attributable to TXNM | $ | 181,373 |  |  | $ | 80,203 |  |  |  |  | $ | (35,135) |  |  | $ | 226,441 |
At September 30, 2024: |  |  |  |  |  |  |  |  |
Total Assets | $ | 7,164,439 |  |  | $ | 3,505,709 |  |  |  |  | $ | 173,333 |  |  | $ | 10,843,481 |
Goodwill | $ | 51,632 |  |  | $ | 226,665 |  |  |  |  | $ | — |  |  | $ | 278,297 |
| PNM |  | TNMP |  |  |  | Corporate and Other |  | TXNM
| (In thousands)
Three Months Ended September 30, 2023 |  |  |  |  |  |  |  |  |
Electric operating revenues | $ | 350,334 |  |  | $ | 155,517 |  |  |  |  | $ | — |  |  | $ | 505,851 |
Cost of energy | 174,362 |  |  | 35,951 |  |  |  |  | — |  |  | 210,313 |
Utility margin | 175,972 |  |  | 119,566 |  |  |  |  | — |  |  | 295,538 |
Other operating expenses | 100,739 |  |  | 35,055 |  |  |  |  | (7,100) |  |  | 128,694 |
Depreciation and amortization | 44,537 |  |  | 28,357 |  |  |  |  | 7,298 |  |  | 80,192 |
Operating income (loss) | 30,696 |  |  | 56,154 |  |  |  |  | (198) |  |  | 86,652 |
Interest income (expense) | 5,323 |  |  | 178 |  |  |  |  | (135) |  |  | 5,366 |
Other income (deductions) | (7,598) |  |  | 2,448 |  |  |  |  | 619 |  |  | (4,531) |
Interest charges | (22,354) |  |  | (12,095) |  |  |  |  | (15,389) |  |  | (49,838) |
Segment earnings (loss) before income taxes | 6,067 |  |  | 46,685 |  |  |  |  | (15,103) |  |  | 37,649 |
Income taxes (benefit) | (7,199) |  |  | 7,181 |  |  |  |  | (5,249) |  |  | (5,267) |
Segment earnings (loss) | 13,266 |  |  | 39,504 |  |  |  |  | (9,854) |  |  | 42,916 |
Valencia non-controlling interest | (5,058) |  |  | — |  |  |  |  | — |  |  | (5,058) |
Subsidiary preferred stock dividends | (132) |  |  | — |  |  |  |  | — |  |  | (132) |
Segment earnings (loss) attributable to TXNM | $ | 8,076 |  |  | $ | 39,504 |  |  |  |  | $ | (9,854) |  |  | $ | 37,726 |
| PNM |  | TNMP |  |  |  | Corporate and Other |  | TXNM
| (In thousands)
Nine Months Ended September 30, 2023 |  |  |  |  |  |  |  |  |
Electric operating revenues | $ | 1,118,741 |  |  | $ | 408,343 |  |  |  |  | $ | — |  |  | $ | 1,527,084 |
Cost of energy | 517,824 |  |  | 106,627 |  |  |  |  | — |  |  | 624,451 |
Utility margin | 600,917 |  |  | 301,716 |  |  |  |  | — |  |  | 902,633 |
Other operating expenses | 305,615 |  |  | 101,302 |  |  |  |  | (19,762) |  |  | 387,155 |
Depreciation and amortization | 132,287 |  |  | 83,746 |  |  |  |  | 21,372 |  |  | 237,405 |
Operating income (loss) | 163,015 |  |  | 116,668 |  |  |  |  | (1,610) |  |  | 278,073 |
Interest income (expense) | 15,542 |  |  | 413 |  |  |  |  | (387) |  |  | 15,568 |
Other income (deductions) | 3,130 |  |  | 4,096 |  |  |  |  | 1,148 |  |  | 8,374 |
Interest charges | (61,242) |  |  | (33,932) |  |  |  |  | (41,486) |  |  | (136,660) |
Segment earnings (loss) before income taxes | 120,445 |  |  | 87,245 |  |  |  |  | (42,335) |  |  | 165,355 |
Income taxes (benefit) | 12,041 |  |  | 13,076 |  |  |  |  | (12,375) |  |  | 12,742 |
Segment earnings (loss) | 108,404 |  |  | 74,169 |  |  |  |  | (29,960) |  |  | 152,613 |
Valencia non-controlling interest | (14,172) |  |  | — |  |  |  |  | — |  |  | (14,172) |
Subsidiary preferred stock dividends | (396) |  |  | — |  |  |  |  | — |  |  | (396) |
Segment earnings (loss) attributable to TXNM | $ | 93,836 |  |  | $ | 74,169 |  |  |  |  | $ | (29,960) |  |  | $ | 138,045 |
At September 30, 2023: |  |  |  |  |  |  |  |  |
Total Assets | $ | 6,731,852 |  |  | $ | 3,039,357 |  |  |  |  | $ | 279,632 |  |  | $ | 10,050,841 |
Goodwill | $ | 51,632 |  |  | $ | 226,665 |  |  |  |  | $ | — |  |  | $ | 278,297 |
Non-GAAP Financial Measures The Company defines utility margin as electric operating revenues less cost of energy. Cost of energy consists primarily of fuel and purchase power costs for PNM and costs charged by third-party transmission providers for TNMP. The Company believes that utility margin provides a more meaningful basis for evaluating operations than electric operating revenues since substantially all such costs are offset in revenues as fuel and purchase power costs are passed through to customers under PNM’s FPPAC and third-party transmission costs are passed on to consumers through TNMP’s transmission cost recovery factor. Utility margin is not a financial measure required to be presented and is considered a non-GAAP measure. PNM and TNMP do not intend for utility margin to represent any financial measure as defined by GAAP. However, the calculation of utility margin, as presented, most closely compares to gross margin as defined by GAAP. Reconciliations between utility margin and gross margin are presented below.
| PNM |  | TNMP |  | Corporate and Other |  | TXNM |
| (In thousands) |
Three Months Ended September 30, 2024 |  |  |  |  |  |  |  |
Gross margin | $ | 212,218 |  |  | $ | 85,054 |  |  | $ | — |  |  | $ | 297,272 |  |
Energy production costs | 21,259 |  |  | — |  |  | — |  |  | 21,259 |  |
Transmission and distribution costs | 15,123 |  |  | 8,537 |  |  | — |  |  | 23,660 |  |
Depreciation and amortization | 56,424 |  |  | 31,732 |  |  | — |  |  | 88,156 |  | 1
Utility margin | $ | 305,024 |  |  | $ | 125,323 |  |  | $ | — |  |  | $ | 430,347 |  |
Nine Months Ended September 30, 2024 |  |  |  |  |  |  |  |
Gross margin | $ | 457,807 |  |  | $ | 213,891 |  |  | $ | — |  |  | $ | 671,698 |  |
Energy production costs | 68,055 |  |  | — |  |  | — |  |  | 68,055 |  |
Transmission and distribution costs | 44,823 |  |  | 26,652 |  |  | — |  |  | 71,475 |  |
Depreciation and amortization | 163,941 |  |  | 93,147 |  |  | — |  |  | 257,088 |  | 1
Utility margin | $ | 734,626 |  |  | $ | 333,690 |  |  | $ | — |  |  | $ | 1,068,316 |  |
| PNM |  | TNMP |  | Corporate and Other |  | TXNM |
| (In thousands) |
Three Months Ended September 30, 2023 |  |  |  |  |  |  |  |
Gross margin | $ | 95,721 |  |  | $ | 81,457 |  |  | $ | — |  |  | $ | 177,178 |  |
Energy production costs | 20,388 |  |  | — |  |  | — |  |  | 20,388 |  |
Transmission and distribution costs | 15,326 |  |  | 9,752 |  |  | — |  |  | 25,078 |  |
Depreciation and amortization | 44,537 |  |  | 28,357 |  |  | — |  |  | 72,894 |  | 1
Utility margin | $ | 175,972 |  |  | $ | 119,566 |  |  | $ | — |  |  | $ | 295,538 |  |
Nine Months Ended September 30, 2023 |  |  |  |  |  |  |  |
Gross margin | $ | 356,317 |  |  | $ | 189,199 |  |  | $ | — |  |  | $ | 545,516 |  |
Energy production costs | 68,345 |  |  | — |  |  | — |  |  | 68,345 |  |
Transmission and distribution costs | 43,968 |  |  | 28,771 |  |  | — |  |  | 72,739 |  |
Depreciation and amortization | 132,287 |  |  | 83,746 |  |  | — |  |  | 216,033 |  | 1
Utility margin | $ | 600,917 |  |  | $ | 301,716 |  |  | $ | — |  |  | $ | 902,633 |  |
1 Corporate and Other depreciation and amortization represents corporate level activities that are billed at cost and reflected as general and administrative expenses at PNM and TNMP and therefore are not a component of gross margin or utility margin. See Note 1.

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