Jack E. Golsen

16 South Pennsylvania

Oklahoma City, Oklahoma 73107

(405) 235-4546

The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

Names of reporting persons

Jack E. Golsen

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  x

SEC use only

Source of funds (see instructions)

Not applicable

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

¨

Citizenship or place of organization

USA

Number of

shares

beneficially

owned by

each

reporting

person

with:

  (7) 

Sole voting power

673,304

  (8)

Shared voting power

2,951,366

  (9)

Sole dispositive power

673,304

(10)

Shared dispositive power

2,951,366

(11)

Aggregate amount beneficially owned by each reporting person

3,624,670

(12)

Check if the aggregate amount in Row (11) excludes certain shares (see instructions)    x

(13)

Percent of class represented by amount in Row (11)

15.59%

(14)

Type of reporting person (see instructions)

IN

Names of reporting persons

Sylvia H. Golsen

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  x

SEC use only

Source of funds (see instructions)

Not applicable

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

¨

Citizenship or place of organization

USA

Number of

shares

beneficially

owned by

each

reporting

person

with:

  (7) 

Sole voting power

—

  (8)

Shared voting power

1,508,272

  (9)

Sole dispositive power

—

(10)

Shared dispositive power

1,508,272

(11)

Aggregate amount beneficially owned by each reporting person

1,508,272

(12)

Check if the aggregate amount in Row (11) excludes certain shares (see instructions)    x

(13)

Percent of class represented by amount in Row (11)

6.6%

(14)

Type of reporting person (see instructions)

IN

Names of reporting persons

Barry H. Golsen

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  x

SEC use only

Source of funds (see instructions)

Not applicable

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

¨

Citizenship or place of organization

USA

Number of

shares

beneficially

owned by

each

reporting

person

with:

  (7) 

Sole voting power

292,467

  (8)

Shared voting power

2,748,616

  (9)

Sole dispositive power

292,467

(10)

Shared dispositive power

2,748,616

(11)

Aggregate amount beneficially owned by each reporting person

3,041,083

(12)

Check if the aggregate amount in Row (11) excludes certain shares (see instructions)    x

(13)

Percent of class represented by amount in Row (11)

13.16%

(14)

Type of reporting person (see instructions)

IN

Names of reporting persons

Steven J. Golsen

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  x

SEC use only

Source of funds (see instructions)

Not applicable

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

¨

Citizenship or place of organization

USA

Number of

shares

beneficially

owned by

each

reporting

person

with:

  (7) 

Sole voting power

263,493

  (8)

Shared voting power

530,688

  (9)

Sole dispositive power

263,493

(10)

Shared dispositive power

530,688

(11)

Aggregate amount beneficially owned by each reporting person

794,181

(12)

Check if the aggregate amount in Row (11) excludes certain shares (see instructions)    x

(13)

Percent of class represented by amount in Row (11)

3.53%

(14)

Type of reporting person (see instructions)

IN

Names of reporting persons

Linda F. Rappaport

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  x

SEC use only

Source of funds (see instructions)

Not applicable

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

¨

Citizenship or place of organization

USA

Number of

shares

beneficially

owned by

each

reporting

person

with:

  (7) 

Sole voting power

0

  (8)

Shared voting power

656,699

  (9)

Sole dispositive power

0

(10)

Shared dispositive power

656,699

(11)

Aggregate amount beneficially owned by each reporting person

656,699

(12)

Check if the aggregate amount in Row (11) excludes certain shares (see instructions)    x

(13)

Percent of class represented by amount in Row (11)

2.92%

(14)

Type of reporting person (see instructions)

IN

Names of reporting persons

I.R.S. Identification No. of above Persons (entities only)

Golsen Family, L.L.C.

20-8234753

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  x

SEC use only

Source of funds (see instructions)

Not applicable

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

¨

Citizenship or place of organization

Oklahoma

Number of

shares

beneficially

owned by

each

reporting

person

with:

  (7) 

Sole voting power

0

  (8)

Shared voting power

1,492,396

  (9)

Sole dispositive power

0

(10)

Shared dispositive power

1,492,396

(11)

Aggregate amount beneficially owned by each reporting person

1,492,396

(12)

Check if the aggregate amount in Row (11) excludes certain shares (see instructions)    x

(13)

Percent of class represented by amount in Row (11)

6.54%

(14)

Type of reporting person (see instructions)

OO

Names of reporting persons

SBL, L.L.C.

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  x

SEC use only

Source of funds (see instructions)

Not applicable

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

¨

Citizenship or place of organization

Oklahoma

Number of

shares

beneficially

owned by

each

reporting

person

with:

  (7) 

Sole voting power

—

  (8)

Shared voting power

2,742,187

  (9)

Sole dispositive power

—

(10)

Shared dispositive power

2,742,187

(11)

Aggregate amount beneficially owned by each reporting person

2,742,187

(12)

Check if the aggregate amount in Row (11) excludes certain shares (see instructions)    x

(13)

Percent of class represented by amount in Row (11)

11.87%

(14)

Type of reporting person (see instructions)

OO

Names of reporting persons

Golsen Petroleum Corporation

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  x

SEC use only

Source of funds (see instructions)

Not applicable

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

¨

Citizenship or place of organization

Oklahoma

Number of

shares

beneficially

owned by

each

reporting

person

with:

  (7) 

Sole voting power

—

  (8)

Shared voting power

417,288

  (9)

Sole dispositive power

—

(10)

Shared dispositive power

417,288

(11)

Aggregate amount beneficially owned by each reporting person

417,288

(12)

Check if the aggregate amount in Row (11) excludes certain shares (see instructions)    ¨

(13)

Percent of class represented by amount in Row (11)

1.86%

(14)

Type of reporting person (see instructions)

CO

Jack E. Golsen (Chief Executive Officer and Chairman of the Board of the Company);

Sylvia H. Golsen, an individual;

Barry H. Golsen (President and member of the Board of Directors of the Company);

Steven J. Golsen (President of certain subsidiaries of the Company and a member of the board of directors of the Company);

Linda F. Rappaport, an individual;

Golsen Family, L.L.C., an Oklahoma limited liability company (“GFLLC”);

SBL, L.L.C., an Oklahoma limited liability company(“SBL”); and

Golsen Petroleum Corporation, an Oklahoma corporation and wholly-owned subsidiary of SBL (“GPC”).

The following table sets forth as of the filing date of this Amendment No. 44 the aggregate number and percentage of the class of Common Stock of the Company owned beneficially by each reporting person:

Person

Jack E. Golsen

Sylvia H. Golsen

Barry H. Golsen

Steven J. Golsen

Linda F. Rappaport

Golsen Family, L.L.C.(1)

SBL (1)

GPC (1)

The membership interests in GFLLC are owned by Jack Golsen through his revocable trust (43.516%), Sylvia Golsen through her revocable trust (43.516%), Barry Golsen (4.323%), Steven Golsen (4.323%), and Linda Rappaport (4.323%). Jack and Sylvia Golsen are the managers of GFLLC, and as a result share voting and dispositive power over the Company’s securities owned by GFLLC. SBL is wholly-owned by GFLLC (49% owner), Barry Golsen (17% owner), Steven Golsen (17% owner) and Linda Rappaport (17% owner). GPC is a wholly owned subsidiary of SBL. Jack Golsen and Barry Golsen are the managers of SBL and the directors and executive officers of GPC. Barry Golsen, Steven Golsen and Linda Rappaport are the children of Jack and Sylvia Golsen, husband and wife.

The amount shown with respect to Jack E. Golsen is comprised of the following shares of Common Stock:

104,000 shares owned directly and by a revocable trust over which the reporting person has the sole investment and dispositive power;

148,725 shares owned directly by GFLLC as described in footnote (7)(a) and (b), over which the reporting person shares investment and dispositive power with Sylvia Golsen;

2,742,187 shares owned by SBL and GPC as described in footnotes (8) and (9), respectively, over which the reporting person shares investment and dispositive power with Barry Golsen;

350,984 shares owned of record by separate trusts for the benefit of the grandchildren and great grandchildren of Jack Golsen, over which Jack Golsen serves as the sole trustee with voting and dispositive power over the Company’s securities held in the trusts;

218,320 shares owned of record by the Barry H. Golsen 2007 Irrevocable Trust, the Steve J. Golsen 2007 Irrevocable Trust, and the Linda F. Rappaport 2007 Irrevocable Trust, over which Jack Golsen serves as the sole trustee with voting and dispositive power over the Company’s securities held in the trusts;

44,578 shares owned by Linda Rappaport directly or as trustee of her revocable trust, the dispositive power and voting power of which is shared with Jack Golsen; and

15,876 shares owned by Sylvia H. Golsen’s revocable trust over which Jack Golsen shares beneficial ownership. Jack Golsen has no pecuniary interest in the shares beneficially owned by Linda Rappaport

The amount shown with respect to Sylvia H. Golsen is comprised of the following shares of Common Stock:

15,876 shares held by the reporting person’s trust of which the reporting person is settlor and trustee over which the reporting person shares investment and dispositive power with Jack Golsen; and

1,492,396 shares representing the reporting person’s percentage ownership of the shares owned directly by GFLLC and that GFLLC has the right to acquire as described in footnote (7) and the reporting person’s percentage ownership in the shares held by SBL and GPC as a result of the reporting person’s ownership in GFLLC. The amount shown does not include, and the reporting person disclaims beneficial ownership of the shares listed in footnote (2) above as beneficially owned by Jack Golsen (except the shares noted in the preceding sentence).

The amount shown with respect to Barry H. Golsen is comprised of the following shares of Common Stock:

292,467 shares held directly;

6,429 shares representing the reporting person’s percentage ownership of the shares owned directly by GFLLC and that GFLLC has the right to acquire as described in footnote (7)(a) and (b); and

2,742,187 shares beneficially owned by SBL and GPC as described in footnotes (8) and (9), respectively, over which the reporting person shares investment and dispositive control with Jack Golsen.

The amount shown with respect to Steven J. Golsen is comprised of the following shares of Common Stock:

263,493 shares held by revocable trusts of which the reporting person is the settlor and trustee;

64,516 shares representing the reporting person’s percentage ownership of the shares owned directly by GFLLC and that GFLLC has the right to acquire as described in footnote (7) and the reporting person’s percentage ownership in the shares held by SBL and GPC as a result of the reporting person’s ownership in GFLLC; and

466,172 shares representing the reporting person’s percentage ownership of the shares beneficially owned by SBL and GPC as described in footnotes (8) and (9), respectively, as a result of the reporting person’s ownership in SBL.

The amount shown with respect to Linda F. Rappaport is comprised of the following shares of Common Stock:

44,578 shares owned directly or through her revocable trust, the dispositive and voting power of which is shared with Jack Golsen;

64,516 shares representing the reporting person’s percentage ownership of the shares owned directly by GFLLC and that GFLLC has the right to acquire as described in footnote (7) and the reporting person’s percentage ownership in the shares held by SBL and GPC as a result of the reporting person’s ownership in GFLLC;

466,172 shares representing the reporting person’s percentage ownership of the shares beneficially owned by SBL and GPC as described in footnotes (8) and (9), respectively, as a result of the reporting person’s ownership in SBL; and

81,433 shares that the reporting person’s spouse owns, for which the reporting person disclaims beneficial ownership.

The amount shown with respect to the Golsen Family, L.L.C. is comprised of the following shares of Common Stock:

15,392 shares owned directly;

133,333 shares issuable upon the conversion of 4,000 shares of the Company’s Series B Preferred owned directly; and

1,343,671 shares representing GFLLC’s beneficial ownership in the shares held by SBL and GPC as a result of the GFLLC’s ownership in SBL.

The amount shown with respect to SBL is comprised of the following shares of Common Stock:

1,674,899 shares owned directly;

250,000 shares issuable upon the conversion of 1,000,000 shares of the Company’s Series D Preferred;

400,000 shares issuable upon the conversion of 12,000 shares of the Company’s Series B Preferred; and

417,288 shares beneficially owned by SBL’s wholly owned subsidiary, GPC. See, footnote (9).

The amount shown with respect to GPC is comprised of the following shares of Common Stock:

283,955 shares owned directly; and

133,333 shares that may be acquired upon conversion of 4,000 shares of the Company’s Series B Preferred Stock.

Holders of the Series B Preferred are entitled to one vote per share, and holders of the Series D Preferred are entitled to .875 votes per share. Both vote together with holders of Common Stock. The amounts and percentages set forth in the table reflect only the voting power of Common Stock into which the Series B Preferred and the Series D Preferred are convertible.

Jack Golsen, Sylvia Golsen, Barry Golsen, Steven Golsen, and Linda Rappaport each disclaims beneficial ownership of the shares of Common Stock beneficially owned by the other, as described in footnotes (2), (3), (4), (5), and (6), respectively, except as stated in such footnotes.

The percentage ownership of each reporting person is based on 22,318,223 shares of Common Stock outstanding as of February 15, 2012. Shares of Common Stock of the Company not outstanding, but which may be acquired by a reporting person during the next 60 days under options, warrants, rights or conversion privileges, are considered to be outstanding only for the purpose of computing the percentage of the class for such reporting person, but are not deemed to be outstanding for the purpose of computing the percentage of the class by any other person.

The following table sets forth, as of the filing date of this Amendment No. 44 for each person and entity identified under paragraph (a), above, the number of shares of Common Stock as to which the person and entity has (i) the sole power to vote or direct the voting, (ii) shared power to vote or direct the voting, (iii) the sole power to dispose or to direct the disposition, or (iv) shared power to dispose or to direct the disposition:

Person or Entity

Jack E. Golsen

Sylvia H. Golsen

Barry H. Golsen

Steven J. Golsen

Linda F. Rappaport

Golsen Family, L.L.C.(1)

SBL(1)

GPC(1)

See footnote (1) under paragraph (a) of this Item 5.

See footnote (2) under paragraph (a) of this Item 5.

See footnote (3) under paragraph (a) of this Item 5

See footnote (4) under paragraph (a) of this Item 5.

See footnote (5) under paragraph (a) of this Item 5.

See footnote (6) under paragraph (a) of this Item 5.

See footnote (7) under paragraph (a) of this Item 5.

See footnote (8) under paragraph (a) of this Item 5.

See footnote (9) under paragraph (a) of this Item 5.

As reported in the Form 4 filed on October 4, 2011, by GFLLC, on September 30, 2011, GFLLC distributed a total of 337,234 shares of the Common Stock on a pro-rata basis, for no consideration, to its members. On November 2, 2011, Jack E. Golsen and Sylvia J. Golsen each made a bona-fide gift of 9,868 to each of nine trusts for the benefit of their grandchildren and great-grandchildren for a total gift of 177,624 shares of Common Stock. Jack E. Golsen is the trustee of each such trust and possesses the voting and dispositive power over the securities held in each of the trusts. On December 12, 2012, Sylvia J. Golsen made a bona fide gift to Jack E. Golsen of 42,062 shares of Common Stock. The foregoing gifts were reported on the Form 5, filed jointly by Jack and Sylvia Golsen on February 14, 2012.

Not applicable.

Not applicable.