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Receivables | 6 Months Ended
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Jun. 30, 2015
Receivables [Abstract] |
Receivables | Receivables Receivables consist of:
| Second Quarter-End |  | Year-End
| 2015 |  | 2014
| (In thousands)
Oil and gas revenue accruals | $ | 6,673 |  |  | $ | 7,293 |
Other receivables and accrued interest | 4,171 |  |  | 6,505 |
Oil and gas joint interest billing receivables | 2,055 |  |  | 5,738 |
Other loans secured by real estate, average interest rates of 10.68% at second quarter-end 2015 and 4.41% at year-end 2014 | 1,948 |  |  | 1,737 |
Loan secured by real estate | $ | — |  |  | $ | 3,574 |
| 14,847 |  |  | 24,847 |
Allowance for bad debts | (237 | ) |  | (258 | )
| $ | 14,610 |  |  | $ | 24,589 |
In second quarter 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 first quarter 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 follows:
| Second Quarter-End
| 2015
| (In thousands)
Beginning of period (year-end 2014) | $ | 839 |
Change in accretable yield due to change in timing of estimated cash flows | 30 |
Interest income recognized (in first six months 2015) | (869 | )
End of period | $ | — |
Other loans secured by real estate generally are secured by a deed of trust and due within three years.

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5066-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5162-111524 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5074-111524 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 9 + Details
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