2

. 3 0 0 2

. 4 0 0 2

. 5 0 0 2

. 6 0 0 2

. 7 0 0 2

. 8 0 0 2

. 9 0 0 3 . 0 0 0 3

. 1 0 0 3

. 2 0 0 3

. 3 0 0 3

. 4 0 0 3

. 5 0 0 3

. 6 0 0 3

. 7 0 0 3

. 8 0 0 3

. 9 0 0 4 . 0 0 0 1 20 0

. 0 5 86 6

. 0 1 30 0

. 0 5 86 6

. 0 1 40 0

. 0 5 86 6

. 0 1 00 0 0 1 50 0 0 2 00 0 0 50 0 0 1 37 1

. 0 5 80 0

. 0 1 37 1

. 0 5 90 0

. 0 1 00 0 0 1 50 0 0 2 00 0 0 2 50 0 0 2

. 3 0 0 2

. 4 0 0 2

. 5 0 0 2

. 6 0 0 2

. 7 0 0 2

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. 9 0 0 3 . 0 0 0 3

. 1 0 0 3

. 2 0 0 3

. 3 0 0 3

. 4 0 0 3

. 5 0 0 3

. 6 0 0 3

. 7 0 0 3

. 8 0 0 3

. 9 0 0 4 . 0 0 0 L in e : T ra ce : Horizontal Distance (ft):TWO-WAYTRAVELTIME (SEC)TWO-WAYTRAVELTIME (SEC) 

### PROPOSED WELLSITE MC692-B NOR TH SOUTH WEST EAST Filename: 122152b_ill_MC692-B-2.cdr Project No. 1012-2152b



### INLINE 1371 

## Illustration MC692-B-2. Portions of Inline 1371 and Crossline 5866 Showing Conditions Beneath Proposed W ellsite MC692-B CROSSLINE 5866 HORIZON 30 SEAFLOOR

HORIZON 40

RELA TIVE AMPLITUDE

Peak T rough RELA TIVE AMPLITUDE

Peak T rough 

### PROPOSED WELLSITE MC692-B

HORIZON 10 HORIZON 20

T OP OF SAL T 

### MC 692 MC

693 MC 692 MC 648

“MC BLUE UNIT”

“MC GREEN UNIT” CHANNEL CHANNEL



### LIMIT OF INVESTIGA

TION1 30 0

. 0 5 86 6

. 0 1 40 0

. 0 5 86 6

. 0 0 50 0 0 1 00 0 0 2

. 3 0 0 2

. 4 0 0 2

. 5 0 0 2

. 6 0 0 2

. 7 0 0 2

. 8 0 0 2

. 9 0 0 3 . 0 0 0 3

. 1 0 0 3

. 2 0 0 3

. 3 0 0 3

. 4 0 0 3

. 5 0 0 3

. 6 0 0 3

. 7 0 0 3

. 8 0 0 3

. 9 0 0 4 . 0 0 0 Line: T race: W A TER FLOW AND GAS POTENTIAL Shallow W ater Flow and Gas Potential HIGH 0 1 2 3 0 = NEGLIGIBLE 1 = LOW 2 = MODERA

TE 3 = HIGH NEGLIGIBLE

Horizon Lithology/Stratigraphy



## Illustration MC692B-3. T ophole Prognosis Chart, Proposed W ellsite MC692-B, Mississippi Canyon Block 692 Potential Drilling Constraints Filename: 22152_ill_MC692-B-3.cdr Project No. 1012-2152b

W ater Flow Gas 3-D Seismic Section Through Proposed W ellsite MC692-B X = 1,198,400 FT; Y

= 10,278,735 FT Crossline 5866 at Inline 1371 

### N S Horizon TWT (sec, bsl) Depth (ft, bml) Depth (ft, bsl)



### CROSSLINE 5866TWO-WAYTIMETRAVEL(SEC) SEAFLOOR HORIZON 10 HORIZON 20 2.418 2.475 2.551

4.000 159 373

4,883 -5,927 -6,086 -6,300

-10,810 PROPOSED WELLSITE MC692-B

HORIZON 30 2.658 675 -6,602 Distance (ft): Horizontal

Interbedded turbidite and mass-transport deposits. Sediments will likely consist of alternating sands, silts, and clays. Moderate potential for overpressured sands. Low potential for shallow gas.

HORIZON 40 3.185 2,235 -8,162 MC 692 MC 648

The seafloor dips to the southeast at about 1.1°. There is a negligible potential for high-density deepwater benthic communities within 2,000 ft of the surface location.

Low potential for shallow water flow and shallow gas. Channel, mass-transport, and turbidite deposits. Sediments are likely sands, silts, and clays. W ell-layered clays and silts.

“MC Blue Unit” - Moderate potential for overpressured sands. Low potential for shallow gas. Low potential for shallow water flow

. Negligible potential for shallow gas. Negligible potential for shallow water flow and shallow gas.

LIMIT OF INVESTIGA

TION INTERF ACE -7,306 2.900 1,379

RELA TIVE AMPLITUDE Low High Interbedded slope-fan and mass-transport deposits. Sediments are likely alternating sands, silts, and clays. “Green Unit” - Moderate potential for overpressured sands. Low potential for shallow gas. UNIT 1 Unit

UNIT 2 UNIT 3 UNIT 4

UNIT 5 CHANNEL Stratified clays and silts interlayered with thin, mud-rich turbidite and mass-transport deposits. Thin sand seams are possible within the turbidites. Mass-transport deposits. Sediments are likely clays and silts with possible discontinuous sand seams.

INTERF ACE Moderate potential for shallow water flow and shallow gas.

-7,528 2.975

1,601**10615 Shadow Wood Drive, Suite 200 Houston, Texas 77043**  **713.468.1410[o] 713.468.1438 [f] www.gemsinc.com**  

### January 28, 2013 **Project No. 1012-2152b Murphy Exploration & Production Co.**  **16290 Katy Frwy. Suite 600**  **Houston, Texas 77094 Attention: Mr. Alan Hadfield**  

## Site Clearance Letter Proposed Wellsite MC692-C Block 692 (OCS-G-34455) Mississippi Canyon Area Gulf of Mexico **Murphy Exploration & Production Co. (Murphy) contra cted Geoscience Earth & Marine Services Inc.**  ® 

### , **(GEMS) to provide an assessment of the shallow geol ogic conditions to determine the favorability of**  **drilling operations for the proposed location MC692 -C in block 692 (OCS-G-34455), Mississippi Canyon**  **Area, Gulf of Mexico. This letter addresses specif ic seafloor and subsurface geologic conditions, to**  **a depth of about 4,893 ft below the mudline (bml), at**  **the Proposed Wellsite MC692-C. The proposed location appears suitable for exploration drilling**  **operations; however, caution is recommended while drilling through the sand-prone sequences below 394**  **ft bml with respect to the potential for shallow w ater**  **flow and shallow gas. The following sections provide details specific to**  **the well location, including: available data, Notic e to**  **Lessees (NTL) requirements, man-made features, and wellsite conditions.**  

## Proposed Well Location **The surface location for Proposed Wellsite MC692-C is in the north-central portion of MC 692. Murphy**  **plans to drill this well using a dynamically positi oned drilling vessel. Our assessment addresses the**  **seafloor conditions within a 2,000 ft radius around the proposed wellsite location. Murphy provided t**  **he following coordinates for the proposed wellsite:**  Proposed Wellsite MC692-C Spheroid & Datum: Clarke 1866, NAD27 Projection: UTM Zone 16 North Line Reference Block Calls MC 692 **X: 1,196,237 ft Latitude: 28o 18’ 28.16640” N Inlin e 1328 7,603 ft FEL**  **Y: 10,275,252 ft Longitude: 88o 22’ 50.89393” W Cro ssline 5840 4,908 ft FNL**  

## Available Data **The following discussion is based on findings provi ded within the main body of the geohazard and**  **archaeological report for Block MC 692 (OCS-G-34455 ), GEMS Report No. 1012-2152b (GEMS, 2012).**  **The text, maps, and figures included in the report provide detail on the regional geology of the surve**  **y area. Data assessed for the report and site cleara**  **nce letters include a 3-D time volume and AUV (Autonomous Underwater Vehicle) data.**  **The 3-D seismic time volume provided by Murphy for the geohazard analysis, covers a 25 square-mile**  **area that includes all and portions of Federal leas e Blocks 647-649, 691-693, and 735-737 in the** 

### Proposed Wellsite MC692-C Site Clearance Letter

**Murphy Exploration & Production Co. //**  **January 28, 2013**

**Geoscience Earth & Marine Services, Inc. ®** // 2 FORUM ENERGY TECHNOLOGIES, INC. 

### Mississippi Canyon (MC) protraction area (Figure C- **1). Additionally, an AUV survey was conducted in October 2012 by C & C Technologies, Inc. (C & C) ov**  **er the blocks of interest (Figure A-1). GEMS used the C & C survey data, to complete an archaeologica**  **l and geohazard assessment over MC 692 (GEMS, 2012). A scanned copy of the gamma ray and**  **resistivity logs in addition to the scout ticket fo r**  **Murphy’s MC 737 #1 well were provided to GEMS by Mu rphy. The well logs were used to identify**  **potential sand layers within the stratigraphic unit s in the survey area.** 

Figure C-1. Seafloor Rendering of the Mississippi Canyon Survey Area. **The black lines represent existing pipelines and the black dot represents an existing**  **well (BOEM, 2013a). The red lines symbolize seaflo or faults, the**  **green dot represents the proposed well location, an d the green circle is a 2,000 ft radius around the**  **proposed wellsite.** 

## Attachments **Wellsite maps are centered on the Proposed Explorat ion Wellsite MC692-C location and are displayed at**  **a 1 inch = 1,000 ft scale (1:12,000). The maps inc luded in this letter are as follows:**  **Map No. MC692C-1: Bathymetry Map Map No. MC692C-2: Seafloor Features Map**  **Map No. MC692C-3: Side-Scan Sonar Mosaic Map No. MC692C-4: Geologic Features Map**  **The illustrations accompanying this letter were ext racted from the available datasets and are listed b**  **elow: Illustration MC692C-1: Side-Scan Sonar Mosaic and S**  **ubbottom Profile Showing Seafloor and Near-Surface Conditions Near Proposed Wellsite MC69**  **2-C** AUV SURVEY AREA

MC692-C 2000 ft

Murphy

MC 737 #1

### Proposed Wellsite MC692-C Site Clearance Letter

**Murphy Exploration & Production Co. //**  **January 28, 2013**

**Geoscience Earth & Marine Services, Inc. ®** // 3 FORUM ENERGY TECHNOLOGIES, INC. 

### Illustration MC692C-2: Portions of Inline 1328 and **Crossline 5840 Showing Conditions Beneath Proposed Wellsite MC692-C**  **Illustration MC692C-3: Tophole Prognosis Chart, Pro posed Wellsite MC692-C, Mississippi**  **Canyon Block 692 Illustration MC692C-4: Arbitrary Seismic Profile Il**  **lustrating Geologic Conditions at the Murphy MC 737 #1 Well Relative to Proposed Wellsite MC692-**  **C** 

## NTL Requirements **The following letter complies with the Bureau of Oc ean Energy Management (BOEM) Notice to Lessees**  **(NTL’s) 2008-G04, 2008-G05, and 2009-G40, (MMS, 200 8a, b, and 2010). The Federal lease Block**  **MC 692 is located within a historically significant area (BOEM, 2011); therefore, requirements set for**  **th in NTL 2005-G07 are applicable (MMS, 2005). An archae**  **ological assessment was completed for MC 692 and included as Appendix A in the main report (GEMS**  **, 2012). The anticipated archaeological conditions within 2,000 ft of the proposed well are included i**  **n the Man-Made Features and Archaeological Assessment section of this letter.**  **According to NTL 2008-G05 (MMS, 2008b), 3-D seismic reflection data may be used for shallow hazard**  **assessments with approval from the BOEM, Gulf of Me xico Region. A power spectrum analysis was**  **conducted from the 3-D seismic data cube provided b y Murphy to illustrate the data parameters**  **(Figure C-2). The power spectrum curve was generat ed within a 500-ft radius of the intersection of th**  **e inline and crossline at the proposed wellsite. We**  **converted the amplitude vs. frequency spectrum, generated by the SMT software, to power vs. frequen**  **cy by squaring the amplitude values as described by J. A. Coffeen, 1978.** 

Figure C-2. Power Spectrum Analysis Curve, Propose d Wellsite MC692-C 

## Man-Made Features and Archaeological Assessment **The surface location is clear of any wells, pipelin es, or platforms within a 2,000 ft radius from the**  **proposed wellsite. The closest existing infrastruc ture to the proposed well is a 14 to 16-inch gas pi**  **peline owned by WFS and a 14 to 16-inch oil pipeline owned**  **by Williams. These pipelines are about 5,200 ft northwest of the proposed location (Map No. MC692C-**  **1). Based on the available data, no archaeological avoidances and no known shipwrecks or objects exist**  **within the area of potential effect for the propos ed**  **Well MC692-C. There are no unidentified side-scan sonar contacts located within 2,000 feet of the**  **proposed MC692-C well (Map No. MC692C-2). Uniden tified Sonar Contact No. 2 is located about**  **3,400 ft west of the proposed wellsite. The sonar contact measures 6.80 ft in length, 2.58 ft in widt**  **h, and 0**  **0.1 0.2**  **0.3 0.4**  **0.5 0.6**  **0.7 0.8**  **0.9 1** 

**0 10 20 30 40 50 60 70 80 90 100**Power (Amp2)

Frequency (Hz) POWER SPECTRUM

### Proposed Wellsite MC692-C Site Clearance Letter

**Murphy Exploration & Production Co. //**  **January 28, 2013**

**Geoscience Earth & Marine Services, Inc. ®** // 4 FORUM ENERGY TECHNOLOGIES, INC. 

### 2.07 ft in height. The contact is considered to be **modern debris from shipping, storms, fishing, and/ or**  **exploration activities. An archaeological avoidanc e is not assigned for this contact; however, a 100-**  **foot geohazard avoidance is recommended for all side-sca**  **n sonar contacts. Unidentified Side-Scan Sonar Contact No. 8, located in the east-central portion**  **of MC 692, is interpreted as a potential shipwreck. A**  **1,500-foot archaeological avoidance for this contac t is recommended. Side-Scan Sonar Contact No. 8**  **lies about 1.3 miles southeast of Proposed Well MC6 92-C.**  

## Wellsite Conditions **The proposed location is clear of any constraining geologic conditions along the seafloor within a 2,0**  **00 ft radius of the proposed wellsite. The shallow strat**  **igraphy at the proposed well location reflects alte rnating**  **deposition of mass-transport, turbidity flow, and s lope-fan deposits interbedded with hemipelagic clay**  **s. Overpressured sands and minor amounts of shallow ga**  **s are possible within the sand-prone sequences. Precautions should be made when drilling through th**  **ese potentially overpressured intervals.** 

### Water Depth and Seafloor Conditions **Seafloor conditions are favorable at the proposed w ellsite location. The water depth at the proposed**  **surface location is approximately -5,917 ft and the seafloor slopes southeast at about 0.2°**  **(Map No.MC692C-1). The proposed well location lies along a subtle, gently-dipping seafloor**  **(Map No. MC692C-2). Slightly irregular/hummocky se afloor conditions are evident at the proposed**  **location. The hummocky morphology is the seafloor expression of underlying mass-transport deposits.**  **A surficial drape (~10 ft thick) of high water conten**  **t silty clays covers the seafloor (Illustration MC6 92C-1).**  

### Deepwater Benthic Communities **Deepwater benthic communities are not expected at t he proposed wellsite. There are no features or**  **areas that could support significant, densely-popul ated benthic communities within 2,000 ft of the**  **proposed location. The Side-Scan Sonar Mosaic (Map No. MC692C-3) shows normal or ambient returns**  **along the seabed with no indication of any hard-bot tom or fluid expulsion events within 2,000 ft of th**  **e proposed well.**  

### Stratigraphy **Subbottom Profiler Line 116 is the closest AUV line to the proposed location (Illustration MC692C-1).**  **Inline 1328 and Crossline 5840 are the closest 3-D lines to Proposed Wellsite MC692-C**  **(Illustration MC692C-2). The Tophole Prognosis Cha rt (Illustration MC692C-3) shows the crossline**  **annotated with calculated depths to the mapped hori zons, predicted unit lithologies, and potentials fo**  **r both shallow water flow and shallow gas.**  **Stratigraphic conditions to the limit of investigat ion (4,893 ft bml) are shown on Illustrations MC692**  **C-1 through MC692C-3. The sedimentary section has been**  **subdivided into five seismic units or sequences. The AUV subbottom profiler shows an acoustically tr**  **ansparent drape approximately 10 ft thick at the to p**  **of Unit 1 beneath the proposed location (Illustrati on MC 692C-1). The drape likely consists of very s**  **oft, high water content pelagic clays. Shear strengths**  **will gradually increase corresponding to a decrease in**  **water content throughout the remainder of Unit 1 (1 59 ft bml).**  **A mass-transport deposit, about 30 ft thick, occurs just beneath Horizon 10 at the top of Unit 2**  **(159 ft bml, Illustration MC 692C-1). The mass-tra nsport deposits likely have higher than normal shea**  **r strengths. The remainder of Unit 2 (Horizon 10 to**  **Horizon 20) will consist primarily of mud-rich turb idites**  **interlayered with thin mass-transport deposits. Th e Measurement While Drilling (MWD) logs for the**  **MC 737 #1 well show a sand layer less than 10 ft th ick at about 364 ft bml. This sand layer may corre**  **late to the base of Unit 2 at the Proposed Wellsite MC69**  **2-C. Units 3 and 4 are slope fan-channel complexes (Illu**  **strations MC692C-2 and MC692C-3). These intervals are part of regional sequences known as the Blue an**  **d Green units. The sequences will consist of stratified and chaotic intervals from 394 ft to 2,7**  **19 ft bml. The stratified sediments include turbid ites,**  **levee, overbank, and sheet sand deposits. Chaotic intervals include mass-transport deposits and** 

### Proposed Wellsite MC692-C Site Clearance Letter

**Murphy Exploration & Production Co. //**  **January 28, 2013**

**Geoscience Earth & Marine Services, Inc. ®** // 5 FORUM ENERGY TECHNOLOGIES, INC. 

### channel fill. Thin, continuous sand layers and sea **ms are likely within the stratified intervals inter bedded**  **with clays and silty clays. The chaotic intervals will contain mud-rich sediments; however, scattered**  **sand pockets and layers are likely. The MWD logs for MC**  **737 #1 display sand layers throughout the Blue and Green units. Sand layers measuring up to 10 ft thi**  **ck within the Blue unit and up to 40 ft thick withi n the**  **Green unit are evident at the MC 737 #1 well. Sedi ments within the Blue unit at the MC 737 #1 well**  **consist of stratified turbidites while Blue unit se diments at the proposed location are predominantly**  **clay-rich, mass-transport deposits. Potential sand seams within the stratified slope-fan deposits at**  **the MC 737 #1 well may not correlate to the chaotic mas**  **s-transport deposits at the proposed location withi n**  **Unit 3 (Illustration MC692C-4). Various sand layer s within the Green unit at the MC 737 #1 well could**  **not be directly correlated to the proposed wellsite; ho**  **wever, thin sand seams are expected within the Gree n**  **unit slope-fan deposits at the Proposed Wellsite MC 692-C (Illustration MC692C-4).**  **Unit 5 (2,719 ft to 4,893 ft bml) consists of strat ified reflectors to the limit of the investigation.**  **The section will consist of turbidites interbedded with thin ma**  **ss-transport deposits. The turbidites will be alte rnating**  **layers of clay, silt, and sand. The MWD logs show interspersed sand layers up to 70 ft thick at the**  **MC 737 #1 well. Similar stratigraphy is expected a t the Proposed Wellsite MC692-C between 2,719 ft**  **and 4,893 ft bml (Illustrations MC692C-3 and MC692C -4).**  

### Faults **Proposed Wellsite MC692-C is not expected to inters ect any seafloor faults (Map No. MC692C-4 and**  **Illustration MC692C-2). The closest seafloor fault lies approximately 3,900 ft southeast of the propo**  **sed location. This fault trends northeast to southwest**  **and is downthrown to the southeast. A vertical borehole will intersect a buried fault a**  **t about 4,783 ft bml (Illustration MC692C-3). The fault**  **trends northeast to southwest and is downthrown to the northwest. This fault will not be a constraint**  **to drilling operations.**  **Other buried adjustment faults exist near the propo sed wellsite within Unit 5 (2,719 ft to 4,893 ft bm**  **l). These faults do not appear to be intersected by the**  **proposed well and are not expected to impact drill ing**  **operations.** 

### Shallow Gas and Shallow Water Flow **The potential for shallow gas at this well location is generally negligible to low, while the potentia**  **l for shallow water flow is negligible to moderate (Illus**  **tration MC692C-3).** Shallow Gas. **There are no apparent subsurface high-amplitude ano malies directly beneath the**  **proposed wellsite (Map No. MC692C-4 and Illustratio n MC692C-3). A negligible potential for**  **encountering shallow gas exists within the clay-pro ne intervals within Units 1 and 2 (seafloor to**  **394 ft bml). There is a low potential for encounte ring shallow gas within Unit 3 (394 ft to 749 ft bm**  **l), Unit 4 (749 ft to 2,719), and Unit 5 (2,719 ft to 4**  **,893 ft bml). Low- to moderate-amplitude reflector s within**  **the channel, turbidite, mass-transport, and slope-f an deposits may indicate gas-filled, coarse grained**  **sediments of predominantly clay-rich intervals. Mi nor amounts of solution gas may be encountered with**  **in isolated sands.**  Shallow Water Flow. **The Blue and Green units (Units 3 and 4) are slop e fan-complexes that contain**  **sand-rich intervals and have sourced shallow water flow problems in the Mississippi Canyon region**  **(BOEM, 2013b). Nine incidents are reported from we lls in a 20-mile radius of the proposed MC 692-C**  **location within these sequences. Reported depths b elow the mudline to the flows vary from 924 ft to**  **2,374 ft. The severity of the flows varied from mo derate to low. Exploration and production wells in**  **MC 736 to the south do not appear on the BOEM listing**  **of shallow water flow incidents; however, no drilli ng**  **reports are available from these offset wells. MWD logs for Murphy’s MC 737 #1 well were provided to**  **assess potential sand layers within the stratigraph ic units at the proposed well location. Based on t**  **he seismic character, regional history of Blue and Gre**  **en units, and the MWD logs from the MC 737 #1 well, we consider the section from 394 ft to 2,351 ft bml**  **to have a moderate potential for overpressured san d**  **layers. The MWD logs show interspersed sand layers throughout Units 3 and 4. Sand layers at the**  **MC 737 #1 well measure up to 10 ft thick within Uni t 3 and up to 40 ft thick within Unit 4. Although**  **these**

### Proposed Wellsite MC692-C Site Clearance Letter

**Murphy Exploration & Production Co. //**  **January 28, 2013**

**Geoscience Earth & Marine Services, Inc. ®** // 6 FORUM ENERGY TECHNOLOGIES, INC. 

### sand layers may not directly correlate to the sedim **ents in Units 3 and 4 at the proposed well location ,**  **interbedded sand layers are expected. Units 2 and 5 have a low potential for overpressure**  **d sand layers. Any sands encountered within the turbidite and mass-transport deposits within this u**  **nit are expected to be thin seams and not likely to produce sustained flows. The clay-rich surficial s**  **equence (Unit 1) has a negligible potential for overpressured sands.**  

## Results and Recommendations **The Proposed Wellsite C, Mississippi Canyon block 6 92, appears suitable for exploration drilling opera**  **tions; however, some constraints were observed. We advise**  **using caution while drilling through the potential overpressured sands below 394 ft bml, some of which**  **may contain minor amounts of biogenic gas. Partic ular**  **concern should be given to Units 3 and 4 (394 ft to 749 ft bml and 1,473 ft to 2,351 ft bml) that corr**  **elate to the regional Blue and Green units. These units are ass**  **ociated with numerous water flow events throughout much**  **of the Mississippi Canyon Area.** 

## Closing **We appreciate the opportunity to be of service to M urphy Exploration & Production Co., and look forwar**  **d to working with Murphy on future projects.** 
**Sincerely,** GEOSCIENCE EARTH & MARINE SERVICES, INC. ®



### Carla Cleveland **Daniel Lanier Geoscientist**  **Vice President-Geosciences**
**Kendra Kennedy, M. A. Erin Williams Janes Marine Archaeologist Senior Geoscientist/Project Ma**  **nager Attachments (4 Maps and 3 Illustrations)**  **Distribution: Mr. Alan Hadfield, Murphy Exploration & Production**  **Co. (6 Copies)** REFERENCES **Bureau of Ocean Energy Management, 2011, Notice to lessees and operators of federal oil and gas leases**  **and pipeline right-of-way holders on the outer continen**  **tal shelf, Revisions to the list of OCS lease block s requiring**  **archaeological resource surveys and reports: U. S. Department of the Interior, Bureau of Ocean Energy**  **Management, Bureau of Safety and Environmental Enfo rcement, Gulf of Mexico OCS Region (GOMR), NTL 2011** 
**- JOINT-G01. Effective Date December 29, 2011.**  **Bureau of Ocean Energy Management, 2013a, ASCII Dat a Files, published on the BOEM Gulf of Mexico Regio**  **n Homepage, <http://www.data.boem.gov/homepg/data_cen**  **ter/mapping/geographic_mapping.asp>, Accessed January, 2013.** 

### Proposed Wellsite MC692-C Site Clearance Letter

**Murphy Exploration & Production Co. //**  **January 28, 2013**

**Geoscience Earth & Marine Services, Inc. ®** // 7 FORUM ENERGY TECHNOLOGIES, INC. **Bureau of Ocean Energy Management, 2013b, Safety pe rformance review – shallow waterflows can pose sign**  **ificant hazards to deepwater drilling, published on the BOE**  **M Gulf of Mexico Region Homepage, <http://www.boem. gov/Oil**  **and-Gas-Energy-Program/Resource-Evaluation/Geologic al-and-Geophysical-Reviews/Reviews-Gulf-of**  **Mexico.aspx>, accessed January, 2013. Coffeen, J. A., 1978, Seismic Exploration Fundament**  **als: Tulsa, the Petroleum Publishing Co., p. 125. Geoscience Earth & Marine Services, Inc. (GEMS), 20**  **12, Geologic, stratigraphic, and archaeological ass essment**  **block 692 (OCS-G-34455), Mississippi Canyon Area, G ulf of Mexico, Project No. 1012-2152b.**  **Minerals Management Service, 2005, Notice to lessee s and operators of federal oil, gas, and sulphur le**  **ases and pipeline right-of-way holders in the outer continen**  **tal shelf, Gulf of Mexico OCS region, Archaeologica l resource**  **surveys and reports: U. S. Department of the Inter ior, Minerals Management Service, Gulf of Mexico, N**  **TL 2005-G07. Effective Date July 1, 2005.**  **Minerals Management Service, 2008a, Notice to lesse es and operators of federal oil, gas, and sulphur l**  **eases in the outer continental shelf, Gulf of Mexico OCS region,**  **information requirements for exploration plans and development**  **operations coordination documents: U. S. Department of the Interior, Minerals Management Service, Gulf**  **of Mexico, NTL 2008-G04. Effective Date May 1, 2008.**  **Minerals Management Service, 2008b, Notice to lesse es and operators of federal oil, gas, and sulphur l**  **eases and pipeline right-of-way holders in the outer continen**  **tal shelf, Gulf of Mexico OCS region, shallow hazar ds program: U.**  **S. Department of the Interior, Minerals Management Service, Gulf of Mexico, NTL 2008-G05. Effective D**  **ate May 1, 2008.**  **Minerals Management Service, 2010, Notice to lessee s and operators of federal oil and gas leases in th**  **e outer continental shelf, Gulf of Mexico OCS region, Deepw**  **ater benthic communities: U. S. Department of the I nterior,**  **Minerals Management Service, Gulf of Mexico, NTL 20 09-G40. Effective Date January 27, 2010.**