**Exhibit 24**

 

# **POWER OF ATTORNEY**

# ** **

KNOW ALL MEN BY THESEPRESENTS:

 

Thatthe undersigned hereby irrevocably constitutes and appoints **Rhys J. Best, Charles J. Keszler and Robert F. Spears**, orany of them, as the true and lawful agents and attorneys-in-fact of theundersigned (the “Attorneys-in-Fact”), each with full power to appoint asubstitute or substitutes to act hereunder, to execute and deliver for and onbehalf of the undersigned the Annual Report of Lone Star Technologies, Inc.on Form 10-K (including any amendments thereto) to be filed with theSecurities and Exchange Commission pursuant to the Securities Exchange Act of1934 for the fiscal year ended December 31, 2005. The undersigned herebyratifies and confirms all that the Attorneys-in-Fact, or any substitute orsubstitutes, may do by virtue of this Power of Attorney.

 

INWITNESS WHEREOF, the undersigned has executed this Power of Attorney at Dallas,Texas on this 28th day of February, 2006.

 

 
|             | /s/ Frederick B.  Hegi, Jr. |   |
|------------------|----------------------------------|--------|
|             | Frederick B.  Hegi, Jr.     |
|             |                             |
|             |                             |
| STATE OF TEXAS   | §                           |
|             | §                           |
| COUNTY OF DALLAS | §                           |
|                  |                                  |        |  |

 

BEFOREME, Connie L. Monk, a Notary Public in and for the State of Texas, on this daydid personally appear Frederick B. Hegi, Jr. known to me to be the personwhose name is subscribed to the foregoing Power of Attorney, and acknowledgedto me that he executed such Power of Attorney for the purposes andconsideration therein expressed.

 

GIVENUNDER MY HAND AND SEAL OF OFFICE, this 28th day of February, 2006.

 

 
|   | /s/ Connie L.  Monk            |   |
|--------|--------------------------------|--------|
|   | Notary Public,  State of Texas |

 

 

My CommissionExpires:  7/26/08

 

1

----

 

# **POWER OF ATTORNEY**

 

KNOW ALL MEN BY THESEPRESENTS:

 

Thatthe undersigned hereby irrevocably constitutes and appoints **Rhys J. Best, Charles J. Keszler and Robert F. Spears**, orany of them, as the true and lawful agents and attorneys-in-fact of theundersigned (the “Attorneys-in-Fact”), each with full power to appoint asubstitute or substitutes to act hereunder, to execute and deliver for and onbehalf of the undersigned the Annual Report of Lone Star Technologies, Inc.on Form 10-K (including any amendments thereto) to be filed with theSecurities and Exchange Commission pursuant to the Securities Exchange Act of1934 for the fiscal year ended December 31, 2005. The undersigned herebyratifies and confirms all that the Attorneys-in-Fact, or any substitute orsubstitutes, may do by virtue of this Power of Attorney.

 

INWITNESS WHEREOF, the undersigned has executed this Power of Attorney at Dallas,Texas on this 28th day of February, 2006.

 

 
|             | /s/ Robert L.  Keiser |   |
|------------------|-----------------------|--------|
|             | Robert L. Keiser      |
|             |                  |
|             |                  |
| STATE OF TEXAS   | §                |
|             | §                |
| COUNTY OF DALLAS | §                |
|                  |                       |        |  |

 

BEFOREME, Connie L. Monk, a Notary Public in and for the State of Texas, on this daydid personally appear Robert L. Keiser known to me to be the person whose nameis subscribed to the foregoing Power of Attorney, and acknowledged to me thathe executed such Power of Attorney for the purposes and consideration thereinexpressed.

 

GIVENUNDER MY HAND AND SEAL OF OFFICE, this 28th day of February, 2006.

 

 
|   | /s/ Connie L.  Monk            |   |
|--------|--------------------------------|--------|
|   | Notary Public,  State of Texas |

 

 

My CommissionExpires:  7/26/08

 

2

----

 

# **POWER OF ATTORNEY**

 

KNOW ALL MEN BY THESEPRESENTS:

 

Thatthe undersigned hereby irrevocably constitutes and appoints **Rhys J. Best, Charles J. Keszler and Robert F. Spears**, orany of them, as the true and lawful agents and attorneys-in-fact of theundersigned (the “Attorneys-in-Fact”), each with full power to appoint asubstitute or substitutes to act hereunder, to execute and deliver for and onbehalf of the undersigned the Annual Report of Lone Star Technologies, Inc.on Form 10-K (including any amendments thereto) to be filed with theSecurities and Exchange Commission pursuant to the Securities Exchange Act of1934 for the fiscal year ended December 31, 2005. The undersigned herebyratifies and confirms all that the Attorneys-in-Fact, or any substitute orsubstitutes, may do by virtue of this Power of Attorney.

 

INWITNESS WHEREOF, the undersigned has executed this Power of Attorney at Dallas,Texas on this 28th day of February, 2006.

 

 
|             | /s/ Robert  Kelley |   |
|------------------|--------------------|--------|
|             | Robert Kelley      |
|             |               |
|             |               |
| STATE OF TEXAS   | §             |
|             | §             |
| COUNTY OF DALLAS | §             |
|                  |                    |        |  |

 

BEFOREME, Connie L. Monk, a Notary Public in and for the State of Texas, on this daydid personally appear Robert Kelley known to me to be the person whose name issubscribed to the foregoing Power of Attorney, and acknowledged to me that heexecuted such Power of Attorney for the purposes and consideration thereinexpressed.

 

GIVENUNDER MY HAND AND SEAL OF OFFICE, this 28th day of February, 2006.

 

 
|   | /s/ Connie L.  Monk            |   |
|--------|--------------------------------|--------|
|   | Notary Public,  State of Texas |

 

 

My CommissionExpires:  7/26/08

 

3

----

 

# **POWER OF ATTORNEY**

 

KNOW ALL MEN BY THESEPRESENTS:

 

That theundersigned hereby irrevocably constitutes and appoints **Rhys J.Best, Charles J. Keszler and Robert F. Spears**, or any of them, asthe true and lawful agents and attorneys-in-fact of the undersigned (the “Attorneys-in-Fact”),each with full power to appoint a substitute or substitutes to act hereunder,to execute and deliver for and on behalf of the undersigned the Annual Reportof Lone Star Technologies, Inc. on Form 10-K (including anyamendments thereto) to be filed with the Securities and Exchange Commissionpursuant to the Securities Exchange Act of 1934 for the fiscal year ended December 31,2005. The undersigned hereby ratifies and confirms all that theAttorneys-in-Fact, or any substitute or substitutes, may do by virtue ofthis Power of Attorney.

 

INWITNESS WHEREOF, the undersigned has executed this Power of Attorney at Dallas,Texas on this 28th day of February, 2006.

 

 
|             | /s/ M. Joseph  McHugh |   |
|------------------|-----------------------|--------|
|             | M. Joseph McHugh      |
|             |                  |
|             |                  |
| STATE OF TEXAS   | §                |
|             | §                |
| COUNTY OF DALLAS | §                |
|                  |                       |        |  |

 

BEFOREME, Connie L. Monk, a Notary Public in and for the State of Texas, on this daydid personally appear M. Joseph McHugh known to me to be the person whose nameis subscribed to the foregoing Power of Attorney, and acknowledged to me thathe executed such Power of Attorney for the purposes and consideration thereinexpressed.

 

GIVENUNDER MY HAND AND SEAL OF OFFICE, this 28th day of February, 2006.

 

 
|   | /s/ Connie L.  Monk            |   |
|--------|--------------------------------|--------|
|   | Notary Public,  State of Texas |

 

 

My CommissionExpires:  7/26/08

 

4

----

 

# **POWER OF ATTORNEY**

 

KNOW ALL MEN BY THESEPRESENTS:

 

Thatthe undersigned hereby irrevocably constitutes and appoints **Rhys J. Best, Charles J. Keszler and Robert F. Spears**, orany of them, as the true and lawful agents and attorneys-in-fact of theundersigned (the “Attorneys-in-Fact”), each with full power to appoint asubstitute or substitutes to act hereunder, to execute and deliver for and onbehalf of the undersigned the Annual Report of Lone Star Technologies, Inc.on Form 10-K (including any amendments thereto) to be filed with theSecurities and Exchange Commission pursuant to the Securities Exchange Act of1934 for the fiscal year ended December 31, 2005. The undersigned herebyratifies and confirms all that the Attorneys-in-Fact, or any substitute orsubstitutes, may do by virtue of this Power of Attorney.

 

INWITNESS WHEREOF, the undersigned has executed this Power of Attorney at Dallas,Texas on this 28th day of February, 2006.

 

 
|             | /s/ Alfred M.  Micallef |   |
|------------------|-------------------------|--------|
|             | Alfred M.  Micallef     |
|             |                    |
|             |                    |
| STATE OF TEXAS   | §                  |
|             | §                  |
| COUNTY OF DALLAS | §                  |
|                  |                         |        |  |

 

BEFOREME, Connie L. Monk, a Notary Public in and for the State of Texas, on this daydid personally appear Alfred M. Micallef known to me to be the person whosename is subscribed to the foregoing Power of Attorney, and acknowledged to methat he executed such Power of Attorney for the purposes and considerationtherein expressed.

 

GIVENUNDER MY HAND AND SEAL OF OFFICE, this 28th day of February, 2006.

 

 
|   | /s/ Connie L.  Monk            |   |
|--------|--------------------------------|--------|
|   | Notary Public,  State of Texas |

 

 

My Commission Expires:  7/26/08

 

5

----

 

# **POWER OF ATTORNEY**

 

KNOW ALL MEN BY THESEPRESENTS:

 

Thatthe undersigned hereby irrevocably constitutes and appoints **Rhys J. Best, Charles J. Keszler and Robert F. Spears**, orany of them, as the true and lawful agents and attorneys-in-fact of theundersigned (the “Attorneys-in-Fact”), each with full power to appoint asubstitute or substitutes to act hereunder, to execute and deliver for and onbehalf of the undersigned the Annual Report of Lone Star Technologies, Inc.on Form 10-K (including any amendments thereto) to be filed with theSecurities and Exchange Commission pursuant to the Securities Exchange Act of1934 for the fiscal year ended December 31, 2005. The undersigned herebyratifies and confirms all that the Attorneys-in-Fact, or any substitute orsubstitutes, may do by virtue of this Power of Attorney.

 

INWITNESS WHEREOF, the undersigned has executed this Power of Attorney at Dallas,Texas on this 28th day of February, 2006.

 

 
|             | /s/ David A.  Reed |   |
|------------------|--------------------|--------|
|             | David A. Reed      |
|             |               |
|             |               |
| STATE OF TEXAS   | §             |
|             | §             |
| COUNTY OF DALLAS | §             |
|                  |                    |        |  |

 

BEFOREME, Connie L. Monk, a Notary Public in and for the State of Texas, on this daydid personally appear David A. Reed known to me to be the person whose name issubscribed to the foregoing Power of Attorney, and acknowledged to me that heexecuted such Power of Attorney for the purposes and consideration thereinexpressed.

 

GIVENUNDER MY HAND AND SEAL OF OFFICE, this 28th day of February, 2006.

 

 
|   | /s/ Connie L.  Monk            |   |
|--------|--------------------------------|--------|
|   | Notary Public,  State of Texas |

 

 

My CommissionExpires:  7/26/08

 

6

----

 

# **POWER OF ATTORNEY**

 

KNOW ALL MEN BY THESEPRESENTS:

 

Thatthe undersigned hereby irrevocably constitutes and appoints **Rhys J. Best, Charles J. Keszler and Robert F. Spears**, orany of them, as the true and lawful agents and attorneys-in-fact of theundersigned (the “Attorneys-in-Fact”), each with full power to appoint asubstitute or substitutes to act hereunder, to execute and deliver for and on behalfof the undersigned the Annual Report of Lone Star Technologies, Inc. on Form 10-K(including any amendments thereto) to be filed with the Securities and ExchangeCommission pursuant to the Securities Exchange Act of 1934 for the fiscal yearended December 31, 2005. The undersigned hereby ratifies and confirms allthat the Attorneys-in-Fact, or any substitute or substitutes, may do byvirtue of this Power of Attorney.

 

INWITNESS WHEREOF, the undersigned has executed this Power of Attorney at Dallas,Texas on this 28th day of February, 2006.

 

 
|             | /s/ Jerry E.  Ryan |   |
|------------------|--------------------|--------|
|             | Jerry E. Ryan      |
|             |               |
|             |               |
| STATE OF TEXAS   | §             |
|             | §             |
| COUNTY OF DALLAS | §             |
|                  |                    |        |  |

 

BEFOREME, Connie L. Monk, a Notary Public in and for the State of Texas, on this daydid personally appear Jerry E. Ryan known to me to be the person whose name issubscribed to the foregoing Power of Attorney, and acknowledged to me that heexecuted such Power of Attorney for the purposes and consideration thereinexpressed.

 

GIVENUNDER MY HAND AND SEAL OF OFFICE, this 28th day of February, 2006.

 

 
|   | /s/ Connie L.  Monk            |   |
|--------|--------------------------------|--------|
|   | Notary Public,  State of Texas |

 

 

My CommissionExpires:  7/26/08

 

7

----

 

# **POWER OF ATTORNEY**

 

KNOW ALL MEN BY THESEPRESENTS:

 

That the undersignedhereby irrevocably constitutes and appoints **Rhys J.Best, Charles J. Keszler and Robert F. Spears**, or any of them, asthe true and lawful agents and attorneys-in-fact of the undersigned (the“Attorneys-in-Fact”), each with full power to appoint a substitute orsubstitutes to act hereunder, to execute and deliver for and on behalf of theundersigned the Annual Report of Lone Star Technologies, Inc. on Form 10-K(including any amendments thereto) to be filed with the Securities and ExchangeCommission pursuant to the Securities Exchange Act of 1934 for the fiscal yearended December 31, 2005. The undersigned hereby ratifies and confirms all thatthe Attorneys-in-Fact, or any substitute or substitutes, may do by virtue ofthis Power of Attorney.

 

IN WITNESS WHEREOF, theundersigned has executed this Power of Attorney at Dallas, Texas on this 28thday of February, 2006.

 

 
|             |   |   | /s/Dan O. Dinges |   |
|------------------|--------|--------|------------------|--------|
|             |   |   | Dan O. Dinges    |   |
|             |   |   |             |
|             |   |   |             |
| STATE OF TEXAS   | § |   |             |
|             | § |   |             |
| COUNTY OF DALLAS | § |   |             |

 

 

BEFORE ME, Connie L.Monk, a Notary Public in and for the State of Texas, on this day did personallyappear Dan O. Dinges known to me to be the person whose name is subscribed tothe foregoing Power of Attorney, and acknowledged to me that he executed suchPower of Attorney for the purposes and consideration therein expressed.

 

GIVEN UNDER MY HAND ANDSEAL OF OFFICE, this 28th day of February, 2006.

 

 
|   | /s/Connie L. Monk              |   |
|--------|--------------------------------|--------|
|   | Notary Public, State of  Texas |

 

 

My Commission Expires:  7/26/08

 

8

----