REGULATORY MATTERS (Tables)

12 Months Ended

Sep. 30, 2017

The following regulatory assets and regulatory liabilities were reflected in the Balance Sheets as of September 30, 2017 and 2016. Unamortized Purchased Gas Adjustments are also included below, which are reported separately in the current assets and liabilities sections of each balance sheet.



	Spire				Spire Missouri				Spire Alabama
September 30	2017		2016		2017		2016		2017		2016
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	42.2	$	27.0	$	34.9	$	20.2	$	7.2	$	6.8
Unamortized purchased gas adjustments	102.6		49.7		57.4		43.1		45.2		5.6
Other	30.7		17.2		3.3		3.7		12.2		8.1
Total Current Regulatory Assets	175.5		93.9		95.6		67.0		64.6		20.5
Noncurrent:
Future income taxes due from customers	170.5		151.3		170.5		151.3		—		—
Pension and postretirement benefit costs	404.7		487.9		322.7		375.7		72.6		98.9
Cost of removal	123.3		130.6		—		—		123.3		130.6
Unamortized purchased gas adjustments	9.9		12.6		9.9		12.6		—		—
Energy efficiency	29.0		25.5		29.0		25.5		—		—
Other	53.7		30.1		25.7		24.7		1.1		1.2
Total Noncurrent Regulatory Assets	791.1		838.0		557.8		589.8		197.0		230.7
Total Regulatory Assets	$	966.6	$	931.9	$	653.4	$	656.8	$	261.6	$	251.2

Regulatory Liabilities:
Current:
RSE adjustment	$	1.4	$	7.5	$	—	$	—	$	1.4	$	5.0
Unbilled service margin	—		5.9		—		—		—		5.9
Refundable negative salvage	8.2		9.3		—		—		8.2		9.3
Unamortized purchased gas adjustments	1.0		1.7		—		—		—		—
Other	12.0		6.2		2.7		1.3		2.4		2.5
Total Current Regulatory Liabilities	22.6		30.6		2.7		1.3		12.0		22.7
Noncurrent:
Pension and postretirement benefit costs	32.2		28.9		—		—		32.2		28.9
Refundable negative salvage	4.1		9.4		—		—		4.1		9.4
Accrued cost of removal	83.8		74.8		54.5		55.1		—		—
Other	37.1		17.6		26.7		12.2		3.3		3.4
Total Noncurrent Regulatory Liabilities	157.2		130.7		81.2		67.3		39.6		41.7
Total Regulatory Liabilities	$	179.8	$	161.3	$	83.9	$	68.6	$	51.6	$	64.4

A portion of the Company’s regulatory assets are not earning a return and are shown in the schedule below:



	Spire				Spire Missouri
September 30	2017		2016		2017		2016
Future income taxes due from customers	$	170.5	$	151.3	$	170.5	$	151.3
Pension and postretirement benefit costs	198.5		240.6		198.5		240.6
Other	11.3		12.9		11.3		12.9
Total Regulatory Assets Not Earning a Return	$	380.3	$	404.8	$	380.3	$	404.8

Schedule of regulatory liabilities



	Spire				Spire Missouri				Spire Alabama
September 30	2017		2016		2017		2016		2017		2016
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	42.2	$	27.0	$	34.9	$	20.2	$	7.2	$	6.8
Unamortized purchased gas adjustments	102.6		49.7		57.4		43.1		45.2		5.6
Other	30.7		17.2		3.3		3.7		12.2		8.1
Total Current Regulatory Assets	175.5		93.9		95.6		67.0		64.6		20.5
Noncurrent:
Future income taxes due from customers	170.5		151.3		170.5		151.3		—		—
Pension and postretirement benefit costs	404.7		487.9		322.7		375.7		72.6		98.9
Cost of removal	123.3		130.6		—		—		123.3		130.6
Unamortized purchased gas adjustments	9.9		12.6		9.9		12.6		—		—
Energy efficiency	29.0		25.5		29.0		25.5		—		—
Other	53.7		30.1		25.7		24.7		1.1		1.2
Total Noncurrent Regulatory Assets	791.1		838.0		557.8		589.8		197.0		230.7
Total Regulatory Assets	$	966.6	$	931.9	$	653.4	$	656.8	$	261.6	$	251.2

Regulatory Liabilities:
Current:
RSE adjustment	$	1.4	$	7.5	$	—	$	—	$	1.4	$	5.0
Unbilled service margin	—		5.9		—		—		—		5.9
Refundable negative salvage	8.2		9.3		—		—		8.2		9.3
Unamortized purchased gas adjustments	1.0		1.7		—		—		—		—
Other	12.0		6.2		2.7		1.3		2.4		2.5
Total Current Regulatory Liabilities	22.6		30.6		2.7		1.3		12.0		22.7
Noncurrent:
Pension and postretirement benefit costs	32.2		28.9		—		—		32.2		28.9
Refundable negative salvage	4.1		9.4		—		—		4.1		9.4
Accrued cost of removal	83.8		74.8		54.5		55.1		—		—
Other	37.1		17.6		26.7		12.2		3.3		3.4
Total Noncurrent Regulatory Liabilities	157.2		130.7		81.2		67.3		39.6		41.7
Total Regulatory Liabilities	$	179.8	$	161.3	$	83.9	$	68.6	$	51.6	$	64.4