Schedule 13 G
Item 1 (a) Castle Energy Corporation
(b) One Radnor Corporate Center
100 Matsonford Rd., Suite 250
Radnor, PA 19087
Item 2 (a) Corbyn Investment Management, Inc., et al.
(b) Suite 108, 2330 W. Joppa Road
Lutherville, Maryland 21093
(c) Incorporated in the State of Maryland
(d) Common Stock
(e) 148449309
Item 3 (h) The filer is a group consisting of an Investment Adviser registered
under Section 203 of the Investment Advisers Act of 1940 and an Investment
Company registered under Section 8 of the Investment Company Act.
Item 4 (a) 684,792 common shares
(b) 12.6%
(c) (i) Sole power to vote or direct the vote of all 684,792 shares
(iii) Sole power to dispose of or direct the disposition of all
684,792 shares
Item 5 N/A
Item 6 N/A
Item 7 N/A
Item 8 (a) The group consists of an Investment Adviser registered under
Section 203 of the Investment Advisers Act of 1940 (IA) and an Investment
Company registered under Section 8 of the Investment Company Act (IV).
Item 9 N/A
<PAGE>
Schedule 13 G
Item 1 (a) Castle Energy Corporation
(b) One Radnor Corporate Center
100 Matsonford Rd. Suite 250
Radnor, PA 19087
Item 2 (a) Corbyn Investment Management,Inc.
(b) Suite 108, 2330 W. Joppa Road
Lutherville, Maryland 21093
(c) Incorporated in the State of Maryland
(d) Common Stock
(e) 148449309
Item 3 (e) The filer is an Investment Adviser registered under
Section 203 of the Investment Advisers Act of 1940.
Item 4 (a) 344,875 common shares
(b) 6.3%
(c)(i) Sole power to vote or direct the vote 344,875 shares
(iii) Sole power to dispose of or direct the disposition of all
344,875 shares
Item 5 N/A
Item 6 N/A
Item 7 N/A
Item 8 N/A
Item 9 N/A
<PAGE>
Schedule 13 G
Item 1 (a) Castle Energy Corporation
(b) One Radnor Corporate Center
100 Matsonford Road, Suite 250
Radnor, PA 19087
Item 2 (a) Greenspring Fund, Inc.
(b) Suite 110, 2330 W. Joppa Road
Lutherville, Maryland 21093
(c) Incorporated in the State of Maryland
(d) Common Stock
(e) 148449309
Item 3 (d) The filer is an Investment Company registered under
Section 8 of the Investment Company Act.
Item 4 (a) 339,917 common shares
(b) 6.3%
(c)(i) Sole power to vote or direct the vote of all 339,917 shares
(iii) Sole power to dispose of or direct the disposition of all
339,917 shares
Item 5 N/A
Item 6 N/A
Item 7 N/A
Item 8 N/A
Item 9 N/A
Item 10 By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were acquired in the ordinary course
of business and were not acquired for the purpose of and do not have the
effect of changing or influencing the control of the issuer of such
securities and were not acquired in connection with or as a participant
in any transaction having such purposes or effect.
After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete
and correct.
Date: June 5, 1997
Signature: Charles vK Carlson
Name/Title: Charles vK Carlson, President
<PAGE>
CUSIP No. 148449309 13G
1. Name of Reporting Person
SS Identification No. of Above Person
Corbyn Investment Management, Inc. et al
n/a
2. Check The Appropriate Box If A Member Of A Control Group
(a) [x]
(b) [ ]
3. SEC Use Only
4. Citizenship or Place of Organization
Suite 108 2330 W. Joppa Rd.
Lutherville, MD 21093
Number of Shares Beneficially Owned By Each Reporting Person:
5. Sole Voting Power
684,792
6. Shared Voting Power
7. Sole Dispositive Power
684,792
8. Shared Dispositive Power
9. Aggregate Amount Beneficially Owned By Each Reporting Person
684,792
10. Check Box if the Aggregate Amount in Row (9) Excludes
Certain Shares [ ]
11. Percent Of Class Represented By Amount In Row 9
12.6%
12. Type Of Reporting Person
00- Group Consisting of IA and IV
<PAGE>
CUSIP No. 148449309 13G
1. Name of Reporting Person
SS Identification No. of Above Person
Corbyn Investment Management, Inc.
52-0964322
2. Check The Appropriate Box If A Member Of A Control Group
(a) [x]
(b) [ ]
3. SEC Use Only
4. Citizenship or Place of Organization
Suite 108 2330 W. Joppa Rd.
Lutherville, MD 21093
Number of Shares Beneficially Owned By Each Reporting Person With:
5. Sole Voting Power
344,875
6. Shared Voting Power
7. Sole Dispositive Power
344,875
8. Shared Dispositive Power
9. Aggregate Amount Beneficially Owned By Each Reporting Person
344,875
10. Check Box if the Aggregate Amount in Row (9) Excludes
Certain Shares [ ]
11. Percent Of Class Represented By Amount In Row 9
6.3%
12. Type Of Reporting Person
IA
<PAGE>
CUSIP No. 148449309 13G
1. Name of Reporting Person
SS Identification No. of Above Person
Greenspring Fund, Inc.
52-1267740
2. Check The Appropriate Box If A Member Of A Control Group
(a) [x]
(b) [ ]
3. SEC Use Only
4. Citizenship or Place of Organization
Suite 110 2330 W. Joppa Rd.
Lutherville, MD 21093
Number of Shares Beneficially Owned By Each Reporting Person With:
5. Sole Voting Power
339,917
6. Shared Voting Power
7. Sole Dispositive Power
339,917
8. Shared Dispositive Power
9. Aggregate Amount Beneficially Owned By Each Reporting Person
339,917
10. Check Box if the Aggregate Amount in Row (9) Excludes
Certain Shares [ ]
11. Percent Of Class Represented By Amount In Row 9
6.3%
12. Type Of Reporting Person
IV
