ECOPETROL S.A. (ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory)

7.	Trade and other receivables, net

The balance of trade and other receivables, net of allowance for doubtful accounts, is comprised as follows as of December 31, 2017 and 2016:

	2017		2016
Current
Customers
Foreign		2,052,829		1,366,322
Domestic		1,533,058		1,180,577
Fuel price stabilization fund (1)		2,256,312		1,203,811
Related parties (Note 31)		23,013		97,730
Industrial services		26,223		60,025
Accounts receivable from employees (2)		34,461		42,407
Other		173,022		261,829
		6,098,918		4,212,701

Non-current
Accounts receivable from employees (2)		484,504		425,468
Related parties (Note 31)		154,810		170,121
Fuel price stabilization fund (1)		77,510		77,510
Other		60,308		56,311
		777,132		729,410

(1)

Accounts receivable from the Ministry of Finance and Public Credit, arising from the differences between the international parity price of regular motor gasoline and diesel and the prices charged by the Group, in accordance with Resolution 180522 issued on March 29, 2010, as amended. The Ministry of Finance and Public Credit actually settles the payments.

(2)	Ecopetrol transferred the administration, management and control of loans granted to employees to Cavipetrol (“Corporación de los trabajadores de la Empresa Colombiana de Petróleos Ecopetrol S.A.”).

The following shows the changes in the allowance for doubtful accounts for the year ended December 31, 2017 and 2016:

	2017		2016
Opening balance		144,329		160,406
Additions of allowances, net		35,229		19,438
Accounts receivable write-off and uses		(9,542)		(35,515)
Closing balance		170,016		144,329

ECOPETROL S.A. | CIK:0001444406 |

ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory