SOUTHWESTERN PUBLIC SERVICE COMPANY EXHIBIT 99. Unaudited Pro Forma Information The following unaudited pro forma combined balance sheets at March 31, 1997 and December 31, 1996, give effect to the Merger as if it had occurred at March 31, 1997 and December 31, 1996, respectively. The unaudited pro forma statements of income for the three months ended March 31,1997 and twelve months ended December 31, 1996, give effect to the Merger as if it had occurred on January 1, 1996. These statements are prepared on the basis of accounting as required under a pooling of interests and do not reflect any cost savings or other synergies anticipated by management as a result of the Merger. Accordingly, the pro forma information is not necessarily indicative of the financial position or results of operations that would have occurred had the Merger been consummated for the periods for which it is given effect, nor is it necessarily indicative of future operating results or financial condition. NEW CENTURY ENERGIES, INC. Unaudited Pro Forma Combined Balance Sheet March 31, 1997 SPS PSCo Pro Forma --- ---- --------- (In Thousands) Assets Property, plant and equipment, at cost: Electric ............................ $2,519,287 $4,012,454 $6,531,741 Gas ................................. - 1,067,579 1,067,579 Steam and other ..................... 38,149 78,376 116,525 Common to all departments ........... - 429,123 429,123 Construction work in progress ....... 103,825 108,101 211,926 ------- ------- ------- 2,661,261 5,695,633 8,356,894 Less: accumulated depreciation ....... 956,944 2,079,254 3,036,198 ------- --------- --------- Total property, plant and equipment . 1,704,317 3,616,379 5,320,696 --------- --------- --------- Investments, at cost, and receivables . 35,153 43,058 78,211 Current assets: Cash and temporary cash investments . 50,709 368,418 419,127 Accounts receivable - net ........... 64,169 203,604 267,773 Accrued unbilled revenues ........... 15,634 69,992 85,626 Recoverable purchased electric energy costs ....................... 11,456 63,365 74,821 Materials and supplies, at average cost 18,149 47,419 65,568 Fuel inventory, at average cost ..... 2,318 24,572 26,890 Gas in underground storage, at cost (LIFO) ........................ - 19,954 19,954 Regulatory assets recoverable within one year ........................... - 44,020 44,020 Prepaid expenses and other .......... 5,201 40,375 45,576 ----- ------ ------ Total current assets ................ 167,636 881,719 1,049,355 ------- ------- --------- Deferred charges Regulatory assets ................... 139,553 291,764 431,317 Unamortized debt expense ............ 9,814 11,908 21,722 Other ............................... 33,779 68,152 101,931 ------ ------ ------- Total deferred charges ............. 183,146 371,824 554,970 ------- ------- ------- $2,090,252 $4,912,980 $7,003,232 ========== ========== ========== The accompanying notes to unaudited pro forma combined balance sheets and statements of income are an integral part of this statement. 57 SOUTHWESTERN PUBLIC SERVICE COMPANY EXHIBIT 99. Unaudited Pro Forma Information NEW CENTURY ENERGIES, INC. Unaudited Pro Forma Combined Balance Sheet, Continued March 31, 1997 SPS PSCo Pro Forma --- ---- --------- (In Thousands) Capitalization and Liabilities Common stock (2) ........................ $ 40,918 $ 326,350 $ 104,142 Paid-in capital (2) ..................... 307,484 739,522 1,310,132 Retained earnings (5) ................... 379,062 415,513 787,122 ------- ------- ------- Total common equity ................... 727,464 1,481,385 2,201,396 Preferred stock: Not subject to mandatory redemption ... - 140,008 140,008 Subject to mandatory redemption ....... - 39,913 39,913 SPS Obligated Mandatorily Redeemable Preferred Securities of Subsidiary Trust Holding soley subordinated debentures of SPS ................... 100,000 - 100,000 Long-term debt .......................... 620,597 1,482,816 2,103,413 ------- --------- --------- 1,448,061 3,144,122 4,584,730 --------- --------- --------- Noncurrent liabilities: Employees' postretirement benefits other than pensions ................... 3,158 55,940 59,098 Employees' postemployment benefits .... 1,340 25,182 26,522 ----- ------ ------ Total noncurrent liabilities ........ 4,498 81,122 85,620 ----- ------ ------ Current liabilities: Notes payable and commercial paper .... 119,586 295,400 414,986 Long-term debt due within one year .... 229 255,076 255,305 Preferred stock subject to mandatory redemption within one year .. - 2,576 2,576 Accounts payable ...................... 76,758 154,394 231,152 Dividends payable ..................... - 37,210 37,210 Customers' deposits ................... 5,761 22,286 28,047 Accrued taxes ......................... 13,948 85,675 99,623 Accrued interest ...................... 9,672 27,885 37,557 Defueling and decommissioning liability - 7,913 7,913 Current portion of accumulated deferred income taxes ................. (3,568) 21,280 17,712 Merger costs (5) ..................... - - 7,453 Other ................................. 29,162 53,935 83,097 ------ ------ ------ Total current liabilities ............ 251,548 963,630 1,222,631 ------- ------- --------- Deferred credits: Customers' advances for construction 412 47,013 47,425 Unamortized investment tax credits 5,657 104,676 110,333 Accumulated deferred income taxes 369,304 542,372 911,676 Other 10,772 30,045 40,817 ------ ------ ------ Total deferred credits 386,145 724,106 1,110,251 ------- ------- --------- $2,090,252 $4,912,980 $7,003,232 ========== ========== ========== The accompanying notes to unaudited pro forma combined balance sheets and statements of income are an integral part of this statement. 58 SOUTHWESTERN PUBLIC SERVICE COMPANY EXHIBIT 99. Unaudited Pro Forma Information NEW CENTURY ENERGIES, INC. Unaudited Pro Forma Combined Statement of Income For the three months ended March 31, 1997 SPS PSCo Pro Forma --- ---- --------- (In Thousands, Except Per Share Data) Operating revenues: Electric $214,495 $373,953 $588,448 Gas - 291,825 291,825 Other 6,800 11,882 18,682 ----- ------ ------ 221,295 677,660 898,955 Operating expenses: Fuel used in generation 104,618 44,261 148,879 Purchased power 5,207 122,626 127,833 Gas purchased for resale - 207,352 207,352 Other operating expenses 30,020 82,828 112,848 Maintenance 6,931 15,113 22,044 Depreciation and amortization 18,230 42,857 61,087 Taxes (other than income taxes) 11,526 22,488 34,014 Income taxes 10,292 35,317 45,609 ------ ------ ------ 186,824 572,842 759,666 ------- ------- ------- Operating income 34,471 104,818 139,289 Other income and deductions: Allowance for equity funds used during construction 5 - 5 Miscellaneous income and deductions - net (3) (2,522) (889) (3,411) (2,517) (889) (3,406) Interest charges: Interest on long-term debt 11,025 26,906 37,931 Amortization of debt discount and expense less premium 562 928 1,490 Other interest 1,026 14,675 15,701 Allowance for borrowed funds used during construction (840) (1,461) (2,301) Dividends on SPS obligated mandatorily redeemable preferred securities of subsidiary trust holding solely subordinated debentures of SPS 1,963 Dividend requirements on preferred stock of subsidiaries - 2,943 2,943 --- ----- ----- 13,736 43,991 57,727 ------ ------ ------ Net Income $ 18,218 $ 59,938 $ 78,156 ========= ======== ========= Weighted average common shares outstanding (2) 40,918 65,122 103,994 ====== ====== ======= Earnings per weighted average share of common stock outstanding $0.45 $0.92 $0.75 ===== ===== ===== The accompanying notes to unaudited pro forma consolidated balance sheets and statements of income are an integral part of this statement. 59 SOUTHWESTERN PUBLIC SERVICE COMPANY EXHIBIT 99. Unaudited Pro Forma Information NEW CENTURY ENERGIES, INC. Unaudited Pro Forma Combined Balance Sheet December 31, 1996 SPS PSCo Pro Forma --- ---- --------- (In Thousands) Assets Property, plant and equipment, at cost: Electric ............................ $2,517,580 $3,931,413 $6,448,993 Gas ................................. - 1,035,394 1,035,394 Steam and other ..................... 37,541 78,225 115,766 Common to all departments ........... - 418,262 418,262 Construction work in progress ....... 79,346 181,597 260,943 ------ ------- ------- 2,634,467 5,644,891 8,279,358 Less: accumulated depreciation ...... 944,279 2,045,996 2,990,275 ------- --------- --------- Total property, plant and equipment 1,690,188 3,598,895 5,289,083 --------- --------- --------- Investments, at cost, and receivables 34,446 46,550 80,996 Current assets: Cash and temporary cash investments 40,609 9,406 50,015 Accounts receivable - net .......... 67,780 218,132 285,912 Accrued unbilled revenues .......... 20,304 85,894 106,198 Recoverable purchased electric energy costs ............................. 15,715 31,288 47,003 Materials and supplies, at average cost 17,776 48,972 66,748 Fuel inventory, at average cost .... 2,320 24,739 27,059 Gas in underground storage, at cost (LIFO) ..................... - 42,836 42,826 Regulatory assets recoverable within one year ........................... 8,000 44,110 52,110 Prepaid expenses and other ......... 4,983 41,790 46,773 ----- ------ ------ Total current assets ............... 177,487 547,157 724,644 ------- ------- ------- Deferred charges Regulatory assets .................. 109,545 304,456 414,001 Unamortized debt expense ........... 9,864 10,975 20,839 Other .............................. 23,264 64,615 87,879 ------ ------ ------ Total deferred charges ........... 142,673 380,046 522,719 ------- ------- ------- $2,044,794 $4,572,648 $6,617,442 ========== ========== ========== The accompanying notes to unaudited pro forma combined balance sheets and statements of income are an integral part of this statement. 60 SOUTHWESTERN PUBLIC SERVICE COMPANY EXHIBIT 99. Unaudited Pro Forma Information NEW CENTURY ENERGIES, INC. Unaudited Pro Forma Combined Balance Sheet December 31, 1996 SPS PSCo Pro Forma --- ---- --------- (In Thousands) Capitalization and Liabilities Common stock (2) ..................... $ 40,918 $ 324,094 $ 103,691 Paid-in capital (2) .................. 307,484 724,353 1,293,158 Retained earnings (5) ................ 383,350 389,841 764,646 ------- ------- ------- Total common equity .............. 731,752 1,438,288 2,161,495 Preferred stock: Not subject to mandatory redemption - 140,008 140,008 Subject to mandatory redemption .... - 39,913 39,913 SPS Obligated Mandatorily Redeemable Preferred Securities of Subsidiary Trust Holding soley subordinated debentures of SPS ................... 100,000 - 100,000 Long-term debt ....................... 620,400 1,259,528 1,879,928 ------- --------- --------- 1,452,152 2,877,737 4,321,344 --------- --------- --------- Noncurrent liabilities: Employees' postretirement benefits other than pensions ................. 2,874 55,677 58,551 Employees' postemployment benefits .. 2,369 25,182 27,551 ----- ------ ------ Total noncurrent liabilities ...... 5,243 80,859 86,102 ----- ------ ------ Current liabilities: Notes payable and commercial paper . 53,836 244,725 298,561 Long-term debt due within one year . 15,231 155,030 170,261 Preferred stock subject to mandatory redemption within one year ......... - 2,576 2,576 Accounts payable ................... 63,004 254,256 317,260 Dividends payable .................. - 36,973 36,973 Customers' deposits ................ 5,842 21,441 27,283 Accrued taxes ...................... 19,999 58,990 78,989 Accrued interest ................... 13,151 33,797 46,948 Defueling and decommissioning liability - 8,665 8,665 Current portion of accumulated deferred income taxes .............. 3,583 4,560 8,143 Merger costs (5) ................... - - 8,545 Other .............................. 28,596 69,203 97,799 ------ ------ ------ Total current liabilities ........ 203,242 890,216 1,102,003 Deferred credits: Customers' advances for construction 366 50,269 50,635 Unamortized investment tax credits . 5,719 105,928 111,647 Accumulated deferred income taxes .. 367,272 539,082 906,354 Other .............................. 10,800 28,557 39,357 ------ ------ ------ Total deferred credits ........... 384,157 723,836 1,107,993 ------- ------- --------- $2,044,794 $4,572,648 $6,617,442 ========== ========== ========== The accompanying notes to unaudited pro forma combined balance sheets and statements of income are an integral part of this statement. 61 SOUTHWESTERN PUBLIC SERVICE COMPANY EXHIBIT 99. Unaudited Pro Forma Information NEW CENTURY ENERGIES, INC. Unaudited Pro Forma Combined Balance Sheet December 31, 1996 SPS PSCo Pro Forma --- ---- --------- (In Thousands, Except Per Share Data) Operating revenues: Electric $927,549 $1,488,990 $2,416,539 Gas - 640,497 640,497 Other 32,047 41,899 73,946 ------ ------ ------ 959,596 2,171,386 3,130,982 Operating expenses: Fuel used in generation 439,838 195,442 635,280 Purchased power 20,154 490,428 510,582 Gas purchased for resale - 393,163 393,163 Other operating expenses 133,657 336,100 469,757 Maintenance 34,916 63,908 98,824 Depreciation and amortization 70,234 154,631 224,865 Taxes (other than income taxes) 46,081 82,899 128,980 Income taxes 57,322 96,331 153,653 ------ ------ ------- 802,202 1,812,902 2,615,104 ------- --------- --------- Operating income 157,394 358,484 515,878 Other income and deductions: Allowance for equity funds used during construction 179 757 936 Miscellaneous income and deductions - net (3) (10,202) (19,015) (29,217) ------- ------- ------- (10,023) (18,258) (28,281) Interest charges: Interest on long-term debt 46,096 92,205 138,301 Amortization of debt discount and expense less premium 2,145 3,621 5,766 Other interest 6,241 57,398 63,639 Allowance for borrowed funds used during construction (2,601) (3,344) (5,945) Dividends on SPS obligated mandatorily redeemable preferred securities of subsidiary trust holding solely subordinated debentures of SPS 1,526 - 1,526 Dividend requirements on preferred stock of subsidiaries 121 11,848 11,969 --- ------ ------ 53,528 161,728 215,256 ------ ------- ------- Earnings available for common stock $ 93,834 $ 178,498 $ 272,341 ======== ========== ========== Weighted average common shares outstanding (2) 40,918 64,187 103,059 ====== ====== ======= Earnings per weighted average share of common stock outstanding $2.29 $2.78 $2.64 ===== ===== ===== The accompanying notes to unaudited pro forma consolidated balance sheets and statements of income are an integral part of this statement. 62 SOUTHWESTERN PUBLIC SERVICE COMPANY EXHIBIT 99. Unaudited Pro Forma Information NEW CENTURY ENERGIES, INC. Notes To Unaudited Pro Forma Combined Financial Information (1) The unaudited pro forma combined statements of income have been prepared from the historical consolidated financial statements of PSCo and SPS and are presented as if the companies were combined during the periods presented herein. Certain items have been reclassified on the consolidated financial statements of SPS to conform with the NCE presentation, including the reclassification on the Statement of Income of UE and Quixx revenues and expenses from Other Income, Net to Operating Revenues and Operating Expenses. (2) The unaudited pro forma combined balance sheets and statements of income reflect the conversion of each outstanding share of PSCo Common Stock into one share of NCE Common Stock, and each outstanding share of SPS Common Stock into 0.95 of one share of NCE Common Stock in accordance with the terms of the Merger Agreement. (3) There were no intercompany transactions and, accordingly, no pro forma elimination adjustments were made. (4) For discussion regarding material commitments and contingencies relating to SPS, see Note (6) of Notes to Consolidated Financial Statements. For PSCo, reference is made to its 1996 Annual Report on Form 10-K and its Form 10-Q for the quarter ended March 31, 1997. (5) The unaudited pro forma combined financial statements include nonrecurring charges directly related to the Merger totaling approximately $1.0 million for the three months ended March 31, 1997, and approximately $9.4 million for the year ended December 31, 1996. These nonrecurring charges include merger related and business integration expenses and benefits expense resulting from an accelerated vesting of certain benefits. The unaudited pro forma combined statement of income do not reflect future nonrecurring charges directly related to the Merger. These costs are estimated to total approximately $7.5 million and $8.5 million at March 31, 1997 and December 31, 1996, respectively. The pro forma combined balance sheets at March 31, 1997 and December 31, 1996, respectively have been adjusted to include these items with the recognition of additional current liabilities and the reduction of retained earnings. 63