Receivables

Receivables consist of:



	At Year-End
	2015			2014
	(In thousands)
Funds held by qualified intermediary for potential 1031 like-kind exchange	$	14,703		$	—
Oil and gas revenue accruals	3,745			7,293
Other receivables and accrued interest	2,448			6,505
Other loans secured by real estate, average interest rate of 11.31% at year-end 2015 and 4.41% at year-end 2014	2,130			1,737
Oil and gas joint interest billing receivables	867			5,738
Loan secured by real estate	—			3,574
	23,893			24,847
Allowance for bad debts	(237		)	(258		)
	$	23,656		$	24,589

In 2015, funds held by qualified intermediary are related to proceeds received from selling 6,915 acres of undeveloped land pending completion of a potential like-kind exchange.

In 2011, we acquired a non-performing loan that was secured by a lien on developed and undeveloped real estate located near Houston designated for single-family residential and commercial development. In 2015, the loan was paid in full and we received principal payments of $4,394,000 and interest payments of $49,000.

Estimated accretable yield is as follows:



	At Year-End
	2015			2014
	(In thousands)
Beginning of year	$	839		$	8,908
Change in accretable yield due to change in timing of estimated cash flows	30			(166		)
Interest income recognized	(869		)	(7,903		)
	$	—		$	839

Other loans secured by real estate generally are secured by a deed of trust and due within three years.