EPOCH WELL LOGGING, INC.

BAKERSFIELD
5880 DISTRICT BLVD. #10
BAKERSFIELD, CA 93309
(805) 397-7472

STEVE APPLETON 		VENTURA
1884 EASTMAN AVE. #104
VENTURA, CA 93003
(805) 658-7708

BILL ANDERSON

SUMMARY OF WELL ACTIVITY

UNOCAL CORPORATION
MCKITTRICK FRONT 415

TABLE OF CONTENTS

Hourly Breakdown 1
Bit Record 2
Mud Properties Summary 3
Survey Data 4
Carbide Lag Report 5
Sidewall Sample Descriptions 6 - 7
Core Descriptions 8 - 11
Supplementary Data Log 12 - 28

ENCLOSURES
Mud Log/Show Quality Summary

January, 1986

UNOCAL CORPORATION
MCKITTRICK FRONT 415

HOURLY BREAKDOWN

ACTIVITY TOTAL
HOURS		 % OF
TOTAL
Drill 98 36.83
Trip 70.75 26.59
Circulate 24.5 9.2
Rig Up 16 6.02
Survey 11.75 4.42
Run E-Logs 11 4.14
Core 10 3.76
Wiper Run 6 2.26
Wait On Cement 6 2.26
Rig BOP 5 1.88
Test BOP 2 0.75
Run Cement 1.5 0.56
Run Casing 1 0.38
Work On Rig 1 0.38
Ream 1 0.38
Slip Drill Line 0.5 0.19
TOTALS 266 100

BIT RECORD

Company: UNOCAL CORPORATION
Well Name: McKittrick Front
Well Number: 415
Bit No. Size Make Type Serial No. Jets Depth In Depth Out Footage Hours T/B/G
RRl 14 3/4 Smith DSJ EZ1314 14-14-14 60 901 841 15 3/2/I
NB2 9 7/8 Security S33F 441513 12/12/12 901 1653 752 9.5 3/2/I
CBl 9 7/8 CDP MC201 3W9216 --------- 4752 4828 76 10 --I
NB3 9 7/8 Smith FDT FD7912 12/12/12 1653 3292 1639 20.5 4/3/I
NB4 9 7/8 Reed HP11J AA13402 12/12/12 3292 3840 558 12 3/2/I
NB5 9 7/8 Smith FDT FD9975 12/12/12 3840 4125 359 8 5/3/I
NB6 9 7/8 Security S44GF 441293 14-14-14 4125 4319 194 9 3/4/I
NB7 9 7/8 Smith SDGH EW4508 12/12/12 4319 4805 486 19.5 4/3/I
NB8 9 7/8 Smith FDT FD8034 12/12/12 4805 5000 175 6 3/2/I

BIT RECORD

Company: UNOCAL CORPORATION
Well Name: McKittrick Front
Well Number: 415
Date Depth MW VIS PV YP FL Solids % Sand % pH Cl- ppm
1/23/86 652 68 45 20 13 6 4 4-Jan 8.5 250
1/24/86 860 67 45 23 12 7 4 2-Jan 8.5 300
1/25/86 1507 76 45 21 12 5.5 6 2-Jan 8.5 300
1/26/86 2210 77 45 22 8 5 8 2-Jan 8.5 300
1/27/86 3300 78 44 25 12 5 10 2-Jan 8.5 250
1/28/86 3850 78 49 28 14 5.2 11 2-Jan 8.5 300
1/29/86 4125 78 44 28 12 5 11 2-Jan 8.5 300
1/30/86 4300 79 46 27 10 5.5 10 4-Mar 8.5 250
1/31/86 4664 78 45 27 11 5 10 4-Mar 8 300

BIT RECORD

Company: UNOCAL CORPORATION
Well Name: McKittrick Front
Well Number: 415
Depth Angle Direction
348 0¡15' N25W
652 0¡30' N85E
881 0¡45' S70E
1180 0¡30' N80E
1507 0¡15' S05W
1788 0¡30' S78W
2180 0¡30' S50E
2577 0¡45' N48W
2987 3¡00 S75W
3272 5¡30' S68W
3464 6¡15' S63W
3820 7¡30' S55W
3969 8¡15' S69W
4095 8¡45' S69W
4121 8¡45' S70W
4153 7¡30' S65W
4185 6¡15' S65W
4216 5¡15' S64W
4248 4¡15' S60W
4279 3¡15' S50W
4345 1¡15' S05W
4471 1¡45' S25W
4629 2¡0' S32W
4755 2¡45' S45W
4940 3¡O' S47W

CARBIDE LAG REPORT

Company: UNOCAL CORPORATION
Well Number: McKittrick Front 415
Contractor: Gary
Rig No. 15

Pump Information
No. Make/Model Liner Size Stroke Length Output (bbl/stk)
1 Nat'l 8-P-80 5 1/2Ó 8 1/2Ó .062
2 Nat'l 7-P-50 5 1/2Ó 7 3/4Ó .057
THEORETICAL LAG ACTUAL CARBIDE LAG
LOG'D BY DATE DEPTH PUMP NO. SPM PUMP FLOW SBS ANS TOTAL STROKES SBT ANT TOTAL TIME SBS ANS TOTAL STROKES SBT ANT TOTAL TIME UNITS
1 DV 1/23/86 378 1 129 8 66 1126 1192 0.5 8.7 9.2 66 1353 1419 0.5 10.5 11 156
2 DV 1/25/86 1306 1 125 7.75 228 1619 1847 1.8 13 14.8 228 1750 1978 1.8 14 15.8
3 JD 1/25/86 1713 1 120 7.44 299 2108 2407 2.5 17.6 20.1 299 2592 2891 2.5 21.6 24.1 200
4 JD 1/26/86 2408 1 133 8.24 421 2995 3416 3.2 22.5 25.7 421 4149 4570 3.2 31.2 34.4 235
5 DV 1/27/86 3134 1 128 7.94 548 3923 4470 4.3 30.6 34.9 548 4572 5120 4.3 35.7 40 360
6 JD 1/27/86 3526 1 130 8.06 616 4423 5040 4.7 34 38.8 616 4968 5584 4.7 38.2 42.9 190
7 JD 1/28/86 3905 1 133 8.25 683 4907 5590 5.1 36.9 42 683 5703 6386 5.1 42.9 48 65
8 DV 1/30/86 4569 1 120 799 5748 6546 6.7 47.9 54.6 799 6411 7210 6.7 53.3 60 45
9 JD 1/31/86 4695 1 128 821 5909 6729 6.4 46.2 52.6 821 6502 2323 6.4 50.8 57.2 60
SPM = Strokes Per Minute.
PUMP FLOW = Barrels Per Minute.
THEORECTICAL LAG = Lag Calculated by Imco Bossmod.
SBS = Surface-To-Bit Strokes.
ANS = Annular Strokes (Bit-To-Surface Strokes).
SBT = Surface-To-Bit Time.
ANT = Annular Time (Bit-To-Surface).