Material amounts related to transactions with related parties included in the Consolidated Statements of Operations and Comprehensive Income are presented in the following table.



	Years Ended December 31,
(in millions)	2018		2017		2016
Duke Energy Carolinas
Corporate governance and shared service expenses^(a)	$	985	$	858	$	831
Indemnification coverages^(b)	22		23		22
JDA revenue^(c)	84		49		38
JDA expense^(c)	207		145		156
Intercompany natural gas purchases^(d)	15		9		2
Progress Energy
Corporate governance and shared service expenses^(a)	$	906	$	736	$	710
Indemnification coverages^(b)	34		38		35
JDA revenue^(c)	207		145		156
JDA expense^(c)	84		49		38
Intercompany natural gas purchases^(d)	78		77		19
Duke Energy Progress
Corporate governance and shared service expenses^(a)	$	577	$	438	$	397
Indemnification coverages^(b)	13		15		14
JDA revenue^(c)	207		145		156
JDA expense^(c)	84		49		38
Intercompany natural gas purchases^(d)	78		77		19
Duke Energy Florida
Corporate governance and shared service expenses^(a)	$	329	$	298	$	313
Indemnification coverages^(b)	21		23		21
Duke Energy Ohio
Corporate governance and shared service expenses^(a)	$	374	$	363	$	356
Indemnification coverages^(b)	5		5		5
Duke Energy Indiana
Corporate governance and shared service expenses^(a)	$	405	$	370	$	366
Indemnification coverages^(b)	7		8		8
Piedmont
Corporate governance and shared service expenses^(a)	$	170	$	50
Indemnification coverages^(b)	2		2
Intercompany natural gas sales^(d)	93		86
Natural gas storage and transportation costs^(e)	25		25

(a)

The Subsidiary Registrants are charged their proportionate share of corporate governance and other shared services costs, primarily related to human resources, employee benefits, information technology, legal and accounting fees, as well as other third-party costs. These amounts are primarily recorded in Operation, maintenance and other on the Consolidated Statements of Operations and Comprehensive Income.


(b)	The Subsidiary Registrants incur expenses related to certain indemnification coverages through Bison, Duke Energy’s wholly owned captive insurance subsidiary. These expenses are recorded in Operation, maintenance and other on the Consolidated Statements of Operations and Comprehensive Income.

(c)

Duke Energy Carolinas and Duke Energy Progress participate in a JDA, which allows the collective dispatch of power plants between the service territories to reduce customer rates. Revenues from the sale of power and expenses from the purchase of power pursuant to the JDA are recorded in Operating Revenues and Fuel used in electric generation and purchased power, respectively, on the Consolidated Statements of Operations and Comprehensive Income.

(d)

Piedmont provides long-term natural gas delivery service to certain Duke Energy Carolinas and Duke Energy Progress natural gas-fired generation facilities. Piedmont records the sales in Operating Revenues, and Duke Energy Carolinas and Duke Energy Progress record the related purchases as a component of Fuel used in electric generation and purchased power on their respective Consolidated Statements of Operations and Comprehensive Income. These intercompany revenues and expenses are eliminated in consolidation. For the two months ended December 31, 2016, and for sales made subsequent to the acquisition for the year ended October 31, 2016, Piedmont recorded $14 million and $7 million, respectively, of natural gas sales with Duke Energy. For sales made prior to the acquisition for the year ended October 31, 2016, Piedmont recorded $74 million of natural gas sales with Duke Energy.

(e)

Piedmont has related party transactions as a customer of its equity method investments in Pine Needle, Hardy Storage, and Cardinal natural gas storage and transportation facilities. These expenses are included in Cost of natural gas on Piedmont's Consolidated Statements of Operations and Comprehensive Income. For the two months ended December 31, 2016, and for the year ended October 31, 2016, Piedmont recorded $6 million and $29 million, respectively, of natural gas storage and transportation costs.