Related Party Transactions	12 Months Ended
Dec. 31, 2012
Related Party Transactions	20. Related Party Transactions Golsen Group In January 2010, we paid interest of $137,500 relating to $5,000,000 of the 2007 Debentures held by the Golsen Group that was accrued at December 31, 2009. In March 2010, we paid dividends totaling $300,000 on our Series B Preferred and our Series D Preferred. During 2010, we incurred interest expense of $275,000 relating to the debentures held by the Golsen Group, of which $137,500 was accrued at December 31, 2010 and paid in January 2011. In March 2011, we paid dividends totaling $300,000 on our Series B Preferred and our Series D Preferred. In March 2011, the Golsen Group sold $3,000,000 of the 2007 Debentures it held to a third party. In July 2011, the Golsen Group converted $2,000,000 of the 2007 Debentures into 72,800 shares of LSB common stock in accordance with the terms of the 2007 Debentures. During 2011, we incurred interest expense of $60,500 relating to the $2,000,000 of the 2007 Debentures that was held by the Golsen Group, of which $55,000 was paid in June 2011 and the remaining amount was forfeited and credited to capital in excess of par value as the result of the conversion. In addition in July 2011, the Golsen Group converted an $8,000 convertible promissory note into 4,000 shares of LSB common stock in accordance with the terms of such note. In March 2012, we paid dividends totaling $300,000 on our Series B Preferred and our Series D Preferred. The Series B Preferred and Series D Preferred are non-redeemable preferred stocks issued in 1986 and 2001, respectively, of which all outstanding shares are owned by the Golsen Group. Landmark Transactions As approved by a special committee of our board of directors, in May 2011, Prime Financial L.L.C. (“Prime”), a subsidiary of LSB, entered into an agreement (the “First Purchase Agreement”) to purchase from Landmark Land Company, Inc. (“Landmark”) certain undeveloped real estate located in Oklahoma City, Oklahoma (the “Oklahoma Real Estate”) for the purchase price of $2,250,000, which transaction was consummated in June 2011. The First Purchase Agreement grants Prime put options to sell the Oklahoma Real Estate to Landmark or to Gerald G. Barton (“Barton”), who is the chief executive officer and a substantial stockholder of Landmark. The put option may be exercised during the sixth year following Prime’s purchase of the Oklahoma Real Estate. If a put option is exercised, the purchase price for the Oklahoma Real Estate will be $2,250,000, plus a premium equal to a simple 10% annual return on the purchase price beginning as of the closing of the First Purchase Agreement, subject to certain adjustments. For financial reporting purposes, no value from the purchase price was allocated to the put options because the appraised value of the Oklahoma Real Estate exceeded the purchase price. As approved by a special committee of our board of directors and pursuant to an agreement (the “Second Purchase Agreement”) entered into in September 2011, effective February 7, 2012, Prime purchased from Landmark certain undeveloped real estate located in Laguna Vista, Texas (the “Texas Real Estate”) for the purchase price of approximately $2,500,000. The Second Purchase Agreement grants Prime put options to sell the Texas Real Estate to Landmark or to Gerald G. Barton (“Barton”), who is the chief executive officer and a substantial stockholder of Landmark. Prime may exercise a put option during the sixth year following Prime’s purchase of the Texas Real Estate. If a put option is exercised, the purchase price for the Texas Real Estate will be based on the original purchase price, plus a premium equal to a simple 10% annual return on the original purchase price beginning as of the closing of the Second Purchase Agreement, subject to certain adjustments. The Second Purchase Agreement also grants Prime warrants to purchase up to 1,000,000 shares of Landmark’s common stock, at $1.00 per share. The right of Prime to acquire Landmark shares under any unexercised warrants shall terminate on the completed exercise of the put options. Also Landmark entered into a separate agreement (“GHP Use Agreement”) to use its reasonable efforts to use, where technically feasible, geothermal heating and air conditioning units manufactured by one of LSB’s subsidiaries on other Landmark properties in the development where the Texas Real Estate is located. For financial reporting purposes, no value from the purchase price was allocated to the put options or the GHP Use Agreement primarily because the estimated market value of the Texas Real Estate exceeded the purchase price and a minimal value from the purchase price was allocated to the warrants primarily because Landmark’s common stock is lightly traded on the Over-the-Counter Bulletin Board with a minimal price per share (Landmark’s average closing price per share was approximately $0.11 over the twelve-month period ended February 7, 2012). Golsen and another individual previously formed a limited liability company (“LLC”), and each contributed $1,000,000 to the LLC. The LLC subsequently loaned Landmark approximately $2,000,000. In March 2011, Golsen sold his membership interest in the LLC to Barton in consideration for a promissory note in the principal amount of approximately $1,100,000, representing the amount that Golsen had invested in the LLC, plus interest (the “Barton Note”). The Barton Note was due and payable in June 2011. Pursuant to the terms of the First and Second Purchase Agreements, until the expiration of the put options, no payment will be made on the Barton Note and payment of the amounts owing under the Barton Note will be subordinate to any amounts owing Prime upon the exercise of a put option. Further, Golsen has agreed under the Second Purchase Agreement that no portion of the purchase price shall be used by Landmark to repay any indebtedness owing to Golsen. In addition, Bernard Ille, one of our directors, served as a director of Landmark for many years until he resigned in March 2011. In light of the Barton Note and Mr. Ille’s past relationship with Landmark, our board of directors appointed a special committee for the purpose of reviewing and determining whether the LSB should purchase the Oklahoma and Texas Real Estate. The special committee believed, based on an analysis of a real estate consultant, that the price that we were to pay for the properties approximated the market value, and also believed that these properties, when developed, have the potential to establish a model geothermal community.

20. Related Party Transactions

Golsen Group

In January 2010, we paid interest of $137,500 relating to $5,000,000 of the 2007 Debentures held by the Golsen Group that was accrued at December 31, 2009. In March 2010, we paid dividends totaling $300,000 on our Series B Preferred and our Series D Preferred. During 2010, we incurred interest expense of $275,000 relating to the debentures held by the Golsen Group, of which $137,500 was accrued at December 31, 2010 and paid in January 2011.

In March 2011, we paid dividends totaling $300,000 on our Series B Preferred and our Series D Preferred. In March 2011, the Golsen Group sold $3,000,000 of the 2007 Debentures it held to a third party. In July 2011, the Golsen Group converted $2,000,000 of the 2007 Debentures into 72,800 shares of LSB common stock in accordance with the terms of the 2007 Debentures. During 2011, we incurred interest expense of $60,500 relating to the $2,000,000 of the 2007 Debentures that was held by the Golsen Group, of which $55,000 was paid in June 2011 and the remaining amount was forfeited and credited to capital in excess of par value as the result of the conversion. In addition in July 2011, the Golsen Group converted an $8,000 convertible promissory note into 4,000 shares of LSB common stock in accordance with the terms of such note.

In March 2012, we paid dividends totaling $300,000 on our Series B Preferred and our Series D Preferred.

The Series B Preferred and Series D Preferred are non-redeemable preferred stocks issued in 1986 and 2001, respectively, of which all outstanding shares are owned by the Golsen Group.

Landmark Transactions

As approved by a special committee of our board of directors, in May 2011, Prime Financial L.L.C. (“Prime”), a subsidiary of LSB, entered into an agreement (the “First Purchase Agreement”) to purchase from Landmark Land Company, Inc. (“Landmark”) certain undeveloped real estate located in Oklahoma City, Oklahoma (the “Oklahoma Real Estate”) for the purchase price of $2,250,000, which transaction was consummated in June 2011. The First Purchase Agreement grants Prime put options to sell the Oklahoma Real Estate to Landmark or to Gerald G. Barton (“Barton”), who is the chief executive officer and a substantial stockholder of Landmark. The put option may be exercised during the sixth year following Prime’s purchase of the Oklahoma Real Estate. If a put option is exercised, the purchase price for the Oklahoma Real Estate will be $2,250,000, plus a premium equal to a simple 10% annual return on the purchase price beginning as of the closing of the First Purchase Agreement, subject to certain adjustments. For financial reporting purposes, no value from the purchase price was allocated to the put options because the appraised value of the Oklahoma Real Estate exceeded the purchase price.

As approved by a special committee of our board of directors and pursuant to an agreement (the “Second Purchase Agreement”) entered into in September 2011, effective February 7, 2012, Prime purchased from Landmark certain undeveloped real estate located in Laguna Vista, Texas (the “Texas Real Estate”) for the purchase price of approximately $2,500,000. The Second Purchase Agreement grants Prime put options to sell the Texas Real Estate to Landmark or to Gerald G. Barton (“Barton”), who is the chief executive officer and a substantial stockholder of Landmark. Prime may exercise a put option during the sixth year following Prime’s purchase of the Texas Real Estate. If a put option is exercised, the purchase price for the Texas Real Estate will be based on the original purchase price, plus a premium equal to a simple 10% annual return on the original purchase price beginning as of the closing of the Second Purchase Agreement, subject to certain adjustments. The Second Purchase Agreement also grants Prime warrants to purchase up to 1,000,000 shares of Landmark’s common stock, at $1.00 per share. The right of Prime to acquire Landmark shares under any unexercised warrants shall terminate on the completed exercise of the put options. Also Landmark entered into a separate agreement (“GHP Use Agreement”) to use its reasonable efforts to use, where technically feasible, geothermal heating and air conditioning units manufactured by one of LSB’s subsidiaries on other Landmark properties in the development where the Texas Real Estate is located. For financial reporting purposes, no value from the purchase price was allocated to the put options or the GHP Use Agreement primarily because the estimated market value of the Texas Real Estate exceeded the purchase price and a minimal value from the purchase price was allocated to the warrants primarily because Landmark’s common stock is lightly traded on the Over-the-Counter Bulletin Board with a minimal price per share (Landmark’s average closing price per share was approximately $0.11 over the twelve-month period ended February 7, 2012).

Golsen and another individual previously formed a limited liability company (“LLC”), and each contributed $1,000,000 to the LLC. The LLC subsequently loaned Landmark approximately $2,000,000. In March 2011, Golsen sold his membership interest in the LLC to Barton in consideration for a promissory note in the principal amount of approximately $1,100,000, representing the amount that Golsen had invested in the LLC, plus interest (the “Barton Note”). The Barton Note was due and payable in June 2011. Pursuant to the terms of the First and Second Purchase Agreements, until the expiration of the put options, no payment will be made on the Barton Note and payment of the amounts owing under the Barton Note will be subordinate to any amounts owing Prime upon the exercise of a put option. Further, Golsen has agreed under the Second Purchase Agreement that no portion of the purchase price shall be used by Landmark to repay any indebtedness owing to Golsen.

In addition, Bernard Ille, one of our directors, served as a director of Landmark for many years until he resigned in March 2011. In light of the Barton Note and Mr. Ille’s past relationship with Landmark, our board of directors appointed a special committee for the purpose of reviewing and determining whether the LSB should purchase the Oklahoma and Texas Real Estate. The special committee believed, based on an analysis of a real estate consultant, that the price that we were to pay for the properties approximated the market value, and also believed that these properties, when developed, have the potential to establish a model geothermal community.