Pinnacle West Capital (PNW) 8-K Results of Operations and Financial Condition

Exhibit 99.6

Last Updated     1/30/2007

Pinnacle West Capital Corporation

Consolidated Statistics By Quarter

2003

																Increase
																(Decrease)
Line		1st Qtr			2nd Qtr		3rd Qtr			4th Qtr			Year-To-Date			vs Prior YTD
	EARNINGS CONTRIBUTION BY SUBSIDIARY ($ Millions)
1	Arizona Public Service	$	16		$	43	$	100		$	21		$	181		$	(18	)
2	Pinnacle West Energy		4			1		2			(15	)		(8	)		11
3	APS Energy Services		8			5		1			3			16			(12	)
4	SunCor		1			2		6			36			46			36
5	El Dorado		—			—		—			—			(1	)		4
6	Parent Company		(11	)		3		—			—			(9	)		(32	)
7	Income From Continuing Operations		18			54		109			45			225			(11	)
8	Income From Discontinued Operations — Net of Tax		7			2		1			4			16			37
9	Cumulative Effect of Change in Accounting — Net of Tax		—			—		—			—			—			66
10	Net Income	$	25		$	56	$	110		$	49		$	241		$	92
	EARNINGS PER SHARE BY SUBSIDIARY — DILUTED
11	Arizona Public Service	$	0.17		$	0.47	$	1.10		$	0.24		$	1.98		$	(0.37	)
12	Pinnacle West Energy		0.05			0.01		0.02			(0.16	)		(0.08	)		0.15
13	APS Energy Services		0.08			0.06		0.01			0.03			0.18			(0.15	)
14	SunCor		0.01			0.03		0.07			0.39			0.50			0.37
15	El Dorado		—			—		—			—			(0.01	)		0.05
16	Parent Company		(0.11	)		0.02		(0.01	)		(0.01	)		(0.10	)		(0.36	)
17	Income From Continuing Operations		0.20			0.59		1.19			0.49			2.47			(0.31	)
18	Income From Discontinued Operations — Net of Tax		0.08			0.02		0.01			0.05			0.16			0.41
19	Cumulative Effect of Change in Accounting — Net of Tax		—			—		—			—			—			0.77
20	Net Income	$	0.28		$	0.61	$	1.20		$	0.54		$	2.63		$	0.87
21	BOOK VALUE PER SHARE	$	29.39		$	29.95	$	30.68		$	30.97		$	30.97		$	1.57
	COMMON SHARES OUTSTANDING (Thousands)
22	Average — Diluted		91,359			91,450		91,467			91,403			91,405			6,441
23	End of Period		91,257			91,262		91,271			91,288			91,288			33

See Glossary of Terms.

Page 26 of 31

Last Updated     1/30/2007

Pinnacle West Capital Corporation

Consolidated Statistics By Quarter

2003

												Increase
												(Decrease)
Line		1st Qtr		2nd Qtr		3rd Qtr		4th Qtr		Year-To-Date		vs Prior YTD
	ELECTRIC OPERATING REVENUES (Dollars in Millions)
	REGULATED ELECTRICITY SEGMENT
	Retail
24	Residential	$	168	$	233	$	363	$	193	$	957	$	51
25	Business		196		251		284		222		953		25
26	Total retail		364		484		647		415		1,910		76
	Wholesale revenue on delivered electricity
27	Traditional contracts		3		4		5		3		15		7
28	Off-system sales		—		—		—		—		—		—
29	Transmission for others		6		5		9		8		28		(2	)
30	Other miscellaneous services		7		6		6		6		25		7
31	Total regulated operating electricity revenues		380		499		667		432		1,978		88
	MARKETING AND TRADING
32	Electricity and other commodity sales		117		101		83		91		392		105
33	Total operating electric revenues	$	497	$	600	$	750	$	523	$	2,370	$	193
	ELECTRIC SALES (GWH)
	REGULATED ELECTRICITY SEGMENT
	Retail sales
34	Residential		2,104		2,543		4,126		2,374		11,147		703
35	Business		2,849		3,450		3,891		3,225		13,415		497
36	Total retail		4,953		5,993		8,017		5,599		24,562		1,200
	Wholesale electricity delivered
37	Traditional contracts		130		131		127		112		500		27
38	Off-system sales		—		—		—		—		—		—
39	Retail load hedge management		109		205		446		334		1,094		(1,548	)
40	Total regulated electricity		5,192		6,329		8,590		6,045		26,156		(321	)
	MARKETING AND TRADING
41	Wholesale sales of electricity		7,372		6,798		7,255		7,378		28,803		5,949
42	Total electric sales		12,564		13,127		15,845		13,423		54,959		5,628

See Glossary of Terms.

Page 27 of 31

Last Updated     1/30/2007

Pinnacle West Capital Corporation

Consolidated Statistics By Quarter

2003

																	Increase
																	(Decrease)
Line		1st Qtr			2nd Qtr			3rd Qtr			4th Qtr			Year-To-Date			vs Prior YTD
	POWER SUPPLY ADJUSTOR (“PSA”) - - REGULATED ELECTRICITY SEGMENT (Dollars in Millions)
43	Deferred fuel and purchased power regulatory asset — beginning balance	$	—		$	—		$	—		$	—		$	—		$	—
44	Deferred fuel and purchased power costs — current period		—			—			—			—			—			—
45	Interest on deferred fuel		—			—			—			—			—			—
46	Amounts recovered through revenues		—			—			—			—			—			—
47	Deferred fuel and purchased power regulatory asset — ending balance	$	—		$	—		$	—		$	—		$	—		$	—
	MARKETING AND TRADING PRETAX GROSS MARGIN ANALYSIS (Dollars in Millions)
	Realized and Mark-To-Market Components
48	Electricity and other commodity sales, realized (a)	$	25		$	20		$	4		$	16		$	65		$	(56	)
49	Mark-to-market reversals on realized sales (a) (b)		(3	)		1			(3	)		(1	)		(11	)		35
50	Change in mark-to-market value of forward sales		(3	)		(1	)		(3	)		(5	)		(7	)		(64	)
51	Total gross margin	$	19		$	20		$	(2	)	$	10		$	47		$	(85	)
																			~~~~a
	By Pinnacle West Entity
52	Parent company marketing and trading division	$	2		$	4		$	(2	)	$	(9	)	$	(5	)	$	(95	)
53	APS		6			4			(6	)		4			8			6
54	Pinnacle West Energy		(1	)		—			—			9			8			4
55	APS Energy Services		12			12			6			6			36			—
56	Total gross margin	$	19		$	20		$	(2	)	$	10		$	47		$	(85	)

(a)

Net effect on pretax gross margin from realization of prior-period mark-to-market included in line 48 and in line 49 is zero. Realization of prior-period mark-to-market relates to cash flow recognition, not earnings recognition. The opposites of amounts included in line 48 are included in line 49. For example, line 49 shows that a prior-period mark-to-market gain of $11 million was transferred to “realized” for the total year 2003. A $11 million realized gain is included in the $65 million on line 48 for the total year 2003.

(b)

Quarterly amounts do not total to annual amounts because of intra-year mark-to-market eliminations.

See Glossary of Terms.

Page 28 of 31

Last Updated     1/30/2007

Pinnacle West Capital Corporation

Consolidated Statistics By Quarter

2003

																	Increase
																	(Decrease)
Line		1st Qtr			2nd Qtr			3rd Qtr			4th Qtr			Year-To-Date			vs Prior YTD
	AVERAGE ELECTRIC CUSTOMERS
	Retail customers
57	Residential		827,937			821,331			824,655			839,539			828,366			26,565
58	Business		101,999			102,601			103,262			104,521			103,096			2,868
59	Total		929,936			923,932			927,917			944,060			931,462			29,432
60	Wholesale customers		65			66			66			66			66			(1	)
61	Total customers		930,001			923,998			927,983			944,126			931,528			29,431
62	Customer growth (% over prior year)		3.3	%		3.1	%		3.2	%		3.4	%		3.3	%		0.2	%
	RETAIL SALES (GWH) - WEATHER NORMALIZED
63	Residential		2,218			2,477			3,939			2,269			10,904			443
64	Business		2,885			3,485			3,857			3,174			13,402			496
65	Total		5,103			5,962			7,796			5,443			24,306			939
	RETAIL USAGE (KWh/Average Customer)
66	Residential		2,541			3,096			5,004			2,828			13,457			432
67	Business		27,927			33,625			37,677			30,865			130,529			1,288
	RETAIL USAGE - WEATHER NORMALIZED (KWh/Average Customer)
68	Residential		2,679			3,016			4,777			2,703			13,163			116
69	Business		28,286			33,969			37,356			30,371			129,997			1,234
	ELECTRICITY DEMAND (MW)
70	System peak demand		3,569			5,571			6,332			5,124			6,332			529

See Glossary of Terms.

Page 29 of 31

Last Updated     1/30/2007

Pinnacle West Capital Corporation

Consolidated Statistics By Quarter

2003

																	Increase
																	(Decrease)
Line		1st Qtr			2nd Qtr			3rd Qtr			4th Qtr			Year-To-Date			vs Prior YTD
	ENERGY SOURCES (GWH)
	Generation production
71	Nuclear		2,306			2,047			2,230			1,732			8,315			(666	)
72	Coal		2,770			2,824			2,972			2,801			11,367			(690	)
73	Gas, oil and other		1,288			1,572			2,696			535			6,091			1,722
74	Total generation production		6,364			6,443			7,898			5,068			25,773			366
	Purchased power
75	Firm load		(12	)		606			1,099			1,418			3,111			1,492
76	Marketing and trading		6,489			6,527			7,498			7,236			27,750			4,045
77	Total purchased power		6,477			7,133			8,597			8,654			30,861			5,537
78	Total energy sources		12,841			13,576			16,495			13,722			56,634			5,903
	POWER PLANT PERFORMANCE
	Capacity Factors
79	Nuclear		98	%		86	%		93	%		72	%		87	%		(7	)%
80	Coal		75	%		75	%		79	%		74	%		76	%		(4	)%
81	Gas, oil and other		26	%		30	%		45	%		9	%		27	%		0	%
82	System average		58	%		57	%		65	%		41	%		54	%		(9	)%
	Generation Capacity Out of Service and Replaced for Native Load (average MW/day) (a)
83	Nuclear		32			134			61			296			131			64
84	Coal		293			253			276			252			268			101
85	Gas		191			149			155			337			208			160
86	Total		516			536			492			885			606			325

(a) Includes planned and unplanned outages

See Glossay of Terms.

Page 30 of 31

Last Updated     1/30/2007

Pinnacle West Capital Corporation

Consolidated Statistics By Quarter

2003

																	Increase
																	(Decrease)
Line		1st Qtr			2nd Qtr			3rd Qtr			4th Qtr			Year-To-Date			vs Prior YTD
	ENERGY MARKET INDICATORS (a)
	Electricity Average Daily Spot Prices ($/MWh)
	On-Peak
87	Palo Verde	$	49.66		$	48.88		$	52.88		$	42.98		$	48.60		$	16.32
88	SP15	$	54.35		$	50.73		$	53.54		$	46.88		$	51.38		$	17.16
	Off-Peak
89	Palo Verde	$	36.09		$	25.48		$	36.08		$	30.48		$	32.03		$	12.14
90	SP15	$	39.70		$	28.27		$	37.81		$	32.85		$	34.66		$	12.97
	WEATHER INDICATORS
	Actual
91	Cooling degree-days		76			1,550			2,701			572			4,899			24
92	Heating degree-days		349			17			—			370			736			(64	)
93	Average humidity		44	%		18	%		30	%		34	%		31	%		4	%
	10-Year Averages
94	Cooling degree-days		99			1,547			2,541			437			4,624			—
95	Heating degree-days		514			31			—			386			931			—
96	Average humidity		41	%		23	%		33	%		39	%		34	%		0	%
	ECONOMIC INDICATORS
	Building Permits — Metro Phoenix (b)
97	Single-family		8,030			10,613			11,191			9,817			39,651			5,339
98	Multi-family		863			2,053			1,231			2,580			6,727			(347	)
99	Total		8,893			12,666			12,422			12,397			46,378			4,992
	Arizona Job Growth (c)
100	Payroll job growth (% over prior year)		1.1	%		0.9	%		1.5	%		2.0	%		1.4	%		1.4	%
101	Unemployment rate (%, seasonally adjusted)		5.8	%		5.9	%		5.7	%		5.3	%		5.7	%		(0.5	)%

Sources:
(a)	Average of daily prices obtained and used with permission from Dow Jones & Company, Inc.
(b)	Arizona Real Estate Center, Arizona State University W.P. Carey College of Business
(c)	Arizona Department of Economic Security

See Glossary of Terms.

Page 31 of 31